Niskie ciśnienie krwi (hipotonia)
Etiologia i przyczyny

Hipotonia definiowana jest jako ciśnienie tętnicze poniżej 90/60 mmHg i może mieć podłoże fizjologiczne (np. u osób z dobrą sprawnością fizyczną, u młodych lub w wyniku czynników genetycznych) lub patologiczne. Najczęstsze przyczyny patologiczne to hipowolemia spowodowana odwodnieniem (np. w wyniku wymiotów, biegunki, nadmiernego pocenia się, stosowania diuretyków), utrata krwi (urazy, krwawienia wewnętrzne), niewydolność serca (zawał, zaburzenia rytmu, kardiomiopatie), choroby endokrynologiczne (choroba Addisona, niedoczynność tarczycy, hipoglikemia), zaburzenia układu nerwowego (choroba Parkinsona, zanik wieloukładowy, neuropatie autonomiczne) oraz stany nagłe jak sepsa i anafilaksja. Hipotonia ortostatyczna definiowana jest jako spadek ciśnienia skurczowego o ≥20 mmHg lub rozkurczowego o ≥10 mmHg w ciągu 3 minut po pionizacji i jest częsta u osób starszych (3-26% pacjentów z nadciśnieniem) oraz w przebiegu neuropatii autonomicznej i odwodnienia. Hipotonia poposiłkowa występuje u około 20% pacjentów z pierwotnym nadciśnieniem i chorobą wieńcową, spowodowana jest rozszerzeniem naczyń trzewnych po posiłku.

Etiologia niskiego ciśnienia krwi (hipotonii)

Niskie ciśnienie krwi (hipotonia) definiowane jest jako ciśnienie krwi niższe niż 90/60 mmHg. Hipotonia występuje, gdy siła, z jaką krew naciska na ściany tętnic, jest mniejsza niż normalnie. Chociaż niskie ciśnienie krwi nie zawsze stanowi problem zdrowotny, może wskazywać na poważne choroby podstawowe i wymagać leczenia, szczególnie gdy towarzyszą mu objawy kliniczne.123

Przyczyny fizjologiczne niskiego ciśnienia krwi

Niektóre osoby naturalnie mają niższe ciśnienie krwi ze względu na czynniki genetyczne lub prowadzony styl życia. Fizjologiczne niskie ciśnienie może być związane z:45

  • Dobrą sprawnością fizyczną i ogólnie dobrym stanem zdrowia
  • Czynnikami genetycznymi dziedziczonymi po rodzicach
  • Wiekiem – ciśnienie krwi naturalnie zmienia się w ciągu dnia i wraz z wiekiem
  • Temperaturą otoczenia – zarówno zbyt wysoka, jak i zbyt niska temperatura może wpływać na ciśnienie krwi

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Dehydratacja i utrata płynów

Jedną z najczęstszych przyczyn hipotonii jest zmniejszona objętość krwi, szczególnie w wyniku odwodnienia. Gdy organizm nie ma wystarczającej ilości wody, zmniejsza się objętość krwi krążącej, co prowadzi do spadku ciśnienia krwi.89

Dehydratacja może być spowodowana przez:1011

  • Niewystarczające spożycie płynów
  • Gorączkę
  • Wymioty i biegunkę
  • Nadmierne pocenie się
  • Nadużywanie leków moczopędnych (diuretyków)
  • Wytężony wysiłek fizyczny
  • Przebywanie w wysokiej temperaturze

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Utrata krwi

Utrata znacznej ilości krwi może prowadzić do hipowolemii (zmniejszonej objętości krwi), powodując spadek ciśnienia tętniczego. Przyczyny utraty krwi obejmują:1415

  • Urazy i obrażenia
  • Krwawienie wewnętrzne
  • Krwotok z przewodu pokarmowego
  • Utratę krwi podczas operacji
  • Oddawanie krwi

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Patologiczne przyczyny niskiego ciśnienia krwi

Choroby serca i układu krążenia

Problemy z sercem mogą upośledzać zdolność serca do skutecznego pompowania krwi, co prowadzi do niskiego ciśnienia. Do schorzeń sercowo-naczyniowych powodujących hipotonię należą:1819

  • Zawał serca – uszkodzenie mięśnia sercowego zmniejsza jego zdolność do pompowania krwi
  • Niewydolność serca – osłabienie mięśnia sercowego prowadzi do zmniejszenia rzutu serca
  • Zaburzenia rytmu serca – zarówno bradykardia (zbyt wolna praca serca), jak i tachykardia (zbyt szybka praca serca) mogą powodować niskie ciśnienie krwi
  • Choroba zastawkowa serca – zaburza przepływ krwi przez serce
  • Kardiomiopatia restrykcyjna – sztywność mięśnia sercowego utrudnia napełnianie komór krwią

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Gdy serce nie jest w stanie skutecznie pompować krwi, zmniejsza się ilość krwi docierająca do narządów, co prowadzi do hipotensji. W skrajnych przypadkach może to prowadzić do wstrząsu kardiogennego.2324

Zaburzenia endokrynologiczne

Choroby gruczołów wydzielania wewnętrznego mogą zakłócać regulację ciśnienia krwi. Do endokrynologicznych przyczyn hipotonii należą:2526

  • Choroba Addisona – niewydolność nadnerczy prowadzi do niedoboru hormonów utrzymujących ciśnienie krwi
  • Niedoczynność tarczycy (hipotyreoiza) – może spowalniać funkcje układu krążenia
  • Hipoglikemia (niski poziom cukru we krwi) – może prowadzić do obniżenia ciśnienia
  • Cukrzyca – szczególnie z powikłaniami neuropatycznymi, które wpływają na autonomiczny układ nerwowy
  • Niedoczynność przytarczyc – zaburzenia gospodarki wapniowej mogą wpływać na funkcję serca

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W chorobie Addisona niskie ciśnienie krwi jest objawem charakterystycznym – ciśnienie skurczowe rzadko przekracza 110 mmHg, a objawy hipotonii ortostatycznej są częste.30

Zaburzenia neurologiczne i autonomiczne

Choroby układu nerwowego mogą upośledzać zdolność organizmu do regulacji ciśnienia krwi, szczególnie poprzez wpływ na układ autonomiczny. Do neurogennych przyczyn hipotonii należą:3132

  • Choroba Parkinsona – uszkodzenie układu nerwowego wpływające na kontrolę ciśnienia krwi
  • Zanik wieloukładowy (zespół Shy-Dragera) – prowadzi do ciężkiej hipotonii ortostatycznej z powodu rozległego uszkodzenia układu autonomicznego
  • Otępienie z ciałami Lewy’ego – wpływa na autonomiczną regulację ciśnienia
  • Czysta niewydolność autonomiczna (zespół Bradbury’ego-Egglestona) – pierwotna neuropatia powodująca ciężką hipotonię ortostatyczną
  • Amyloidoza – odkładanie się białek amyloidowych może uszkadzać nerwy autonomiczne
  • Neuropatia cukrzycowa – uszkodzenie nerwów w wyniku długotrwałej cukrzycy

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Zaburzenia autonomiczne prowadzą do nieprawidłowej kontroli napięcia naczyń, uniemożliwiając prawidłową reakcję na zmiany pozycji ciała lub inne bodźce, które normalnie wywołują skurcz naczyń.36

Ciężkie infekcje i sepsa

Gdy bakterie z miejsca infekcji przedostają się do krwiobiegu, może dojść do sepsy (posocznicy) – stanu zagrażającego życiu, charakteryzującego się znacznym spadkiem ciśnienia krwi.3738

W sepsie bakterie wytwarzają toksyny, które wpływają na naczynia krwionośne, powodując ich rozszerzenie i zwiększoną przepuszczalność, co prowadzi do przecieku płynów z naczyń i spadku objętości krwi krążącej. Skutkiem tego jest niskie ciśnienie krwi, które może prowadzić do wstrząsu septycznego.394041

Ciężkie reakcje alergiczne

Anafilaksja (wstrząs anafilaktyczny) to potencjalnie śmiertelna reakcja alergiczna, której jednym z głównych objawów jest nagły i znaczny spadek ciśnienia krwi.4243

Przyczyny anafilaksji mogą obejmować:4445

  • Leki (np. penicylina)
  • Pokarmy (np. orzechy)
  • Jad owadów (np. pszczoły)
  • Środki kontrastowe zawierające jod używane w badaniach rentgenowskich

Podczas reakcji anafilaktycznej dochodzi do masowego uwalniania mediatorów zapalnych, które powodują rozszerzenie naczyń krwionośnych, zwiększoną przepuszczalność naczyń i spadek oporu obwodowego, prowadząc do gwałtownego spadku ciśnienia krwi.46

Niedobory żywieniowe

Niedobór określonych składników odżywczych może prowadzić do anemii, co z kolei może powodować niskie ciśnienie krwi. Do najważniejszych niedoborów przyczyniających się do hipotonii należą:4748

  • Witamina B12 – niezbędna do produkcji czerwonych krwinek
  • Kwas foliowy – potrzebny do prawidłowego rozwoju czerwonych krwinek
  • Żelazo – kluczowy składnik hemoglobiny

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Niedobór tych składników odżywczych uniemożliwia organizmowi wytwarzanie wystarczającej liczby zdrowych czerwonych krwinek, prowadząc do anemii. W anemii krew ma ograniczoną zdolność do transportu tlenu, co może wpływać na funkcjonowanie serca i naczyń krwionośnych, prowadząc do niskiego ciśnienia krwi.5152

Specyficzne typy hipotonii

Hipotonia ortostatyczna (posturalna)

Hipotonia ortostatyczna to nagły spadek ciśnienia krwi, który następuje po zmianie pozycji z leżącej lub siedzącej na stojącą. Definiuje się ją jako spadek ciśnienia skurczowego o co najmniej 20 mmHg lub ciśnienia rozkurczowego o co najmniej 10 mmHg w ciągu trzech minut po przyjęciu pozycji stojącej.535455

Przyczyny hipotonii ortostatycznej obejmują:5657

  • Odwodnienie
  • Przedłużone leżenie w łóżku
  • Zaburzenia układu autonomicznego (cukrzyca, choroba Parkinsona)
  • Niektóre leki, szczególnie leki przeciwnadciśnieniowe
  • Zanik wieloukładowy
  • Niewydolność autonomiczna

Częstość występowania hipotonii ortostatycznej zwiększa się z wiekiem i według obserwacji dotyka około 3-26% pacjentów z nadciśnieniem tętniczym.5859

Hipotonia poposiłkowa

Hipotonia poposiłkowa (postprandialna) to spadek ciśnienia krwi występujący po posiłku, zazwyczaj w ciągu 1-2 godzin po jedzeniu. Definiuje się ją jako spadek ciśnienia skurczowego o co najmniej 20 mmHg lub spadek poniżej 90 mmHg (przy wyjściowym ciśnieniu skurczowym powyżej 100 mmHg) w ciągu dwóch godzin od spożycia posiłku.6061

Hipotonia poposiłkowa występuje częściej u osób starszych oraz u pacjentów z zaburzeniami autonomicznymi. Około 20% pacjentów z pierwotnym nadciśnieniem i chorobą wieńcową serca cierpi na hipotonię poposiłkową.6263

Jest ona spowodowana rozszerzeniem naczyń krwionośnych w jamie brzusznej i zwiększonym przepływem krwi do jelit podczas trawienia, co zmniejsza ogólne ciśnienie krwi.64

Hipotonia neurogenicznie mediowana

Hipotonia neurogenicznie mediowana (NMH) występuje najczęściej u młodych dorosłych i dzieci. Objawia się spadkiem ciśnienia krwi po długotrwałym staniu lub w odpowiedzi na silne emocje, takie jak szok, strach lub stres.6566

W tym typie hipotonii dochodzi do nieprawidłowej reakcji odruchowej między sercem a mózgiem. Po długim staniu lub w odpowiedzi na silne emocje organizm błędnie reaguje, powodując rozszerzenie naczyń krwionośnych i spowolnienie akcji serca, co prowadzi do spadku ciśnienia krwi.67

Leki jako przyczyna niskiego ciśnienia krwi

Wiele leków może powodować lub nasilać niskie ciśnienie krwi. Do najczęstszych grup leków odpowiedzialnych za hipotonię należą:6869

Leki przeciwnadciśnieniowe

  • Diuretyki (leki moczopędne) – np. furosemid (Lasix, Furoscix), hydrochlorotiazyd (Microzide) – zmniejszają objętość krwi
  • Inhibitory ACE – rozszerzają naczynia krwionośne
  • Antagoniści receptora angiotensyny II (ARB) – rozszerzają naczynia krwionośne
  • Blokery kanału wapniowego – rozszerzają naczynia krwionośne i mogą spowalniać pracę serca
  • Alfa-blokery – np. prazosyna (Minipress) – rozszerzają naczynia krwionośne
  • Beta-blokery – np. atenolol (Tenormin), propranolol (Inderal LA, Innopran XL) – spowalniają pracę serca i zmniejszają siłę skurczu mięśnia sercowego

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Inne leki powodujące hipotonię

  • Leki przeciwdepresyjne – szczególnie trójpierścieniowe leki przeciwdepresyjne
  • Leki na chorobę Parkinsona – mogą wpływać na funkcję autonomicznego układu nerwowego
  • Leki na zaburzenia erekcji – szczególnie w połączeniu z nitrogliceryną
  • Leki nasercowe – np. digoksyna (Lanoxin) – mogą spowalniać częstość akcji serca
  • Narkotyki i opioidowe leki przeciwbólowe – rozszerzają naczynia krwionośne
  • Niektóre środki znieczulające – zwłaszcza znieczulenie rdzeniowe i większość środków wziewnych

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Przewlekłe stosowanie alfa-blokerów lub beta-blokerów może prowadzić do hipotonii. Beta-blokery mogą powodować niskie ciśnienie krwi zarówno przez spowolnienie rytmu serca, jak i przez zmniejszenie zdolności pompowania mięśnia sercowego.7576

Dodatkowe czynniki wpływające na ciśnienie krwi

Ciąża

Niskie ciśnienie krwi jest częstym zjawiskiem w czasie ciąży, szczególnie w pierwszych 24 tygodniach. Zmiany hormonalne podczas ciąży powodują szybkie rozszerzanie się naczyń krwionośnych, co może prowadzić do spadku ciśnienia.7778

W czasie ciąży ciśnienie skurczowe zazwyczaj spada o 5-10 mmHg, a ciśnienie rozkurczowe o 10-15 mmHg. Po porodzie ciśnienie krwi zwykle wraca do wartości sprzed ciąży.7980

Wiek

Ryzyko niskiego ciśnienia krwi zwiększa się wraz z wiekiem. Około 10-20% osób powyżej 65 roku życia doświadcza hipotonii ortostatycznej.8182

U osób starszych hipotonia może być związana z:83

  • Zmniejszoną zdolnością baroreceptorów do regulacji ciśnienia krwi
  • Częstszym stosowaniem leków, które mogą obniżać ciśnienie
  • Współistniejącymi chorobami, takimi jak cukrzyca, udar mózgu, niewydolność serca i przewlekła choroba nerek

Alkohol i substancje psychoaktywne

Spożywanie alkoholu i zażywanie niektórych narkotyków może prowadzić do tymczasowego obniżenia ciśnienia krwi. Substancje te mogą powodować rozszerzenie naczyń krwionośnych i zmniejszenie oporu obwodowego.8485

Wstrząs jako skrajna manifestacja hipotonii

Wstrząs jest poważnym stanem klinicznym charakteryzującym się znacznym spadkiem ciśnienia krwi, który prowadzi do niedotlenienia narządów i może być śmiertelny. Występuje, gdy ciśnienie krwi jest za niskie, aby utrzymać odpowiednie przepływy krwi przez narządy.8687

Wstrząs można sklasyfikować na kilka typów w zależności od przyczyny:88

  • Wstrząs hipowolemiczny – spowodowany utratą krwi lub płynów
  • Wstrząs kardiogenny – spowodowany niewydolnością serca jako pompy
  • Wstrząs dystrybucyjny – w tym wstrząs septyczny, anafilaktyczny i neurogenny, charakteryzujący się rozszerzeniem naczyń
  • Wstrząs obturacyjny – spowodowany przeszkodą w przepływie krwi, np. zatorowość płucna, tamponada serca, odma prężna

Przykładem złożonego mechanizmu wstrząsowego jest zespół Waterhouse’a-Friderichsena, który obejmuje niewydolność nadnerczy z powodu krwotoku, zazwyczaj wywołanego przez infekcję bakteryjną Neisseria. Ten stan prowadzi do niewydolności nadnerczy w produkcji kluczowych hormonów, powodując hipotonię i wstrząs.89

Czynniki ryzyka niskiego ciśnienia krwi

Różne czynniki mogą zwiększać ryzyko wystąpienia hipotonii, w tym:9091

  • Wiek powyżej 65 lat
  • Przyjmowanie leków, które mogą obniżać ciśnienie krwi
  • Choroby przewlekłe, takie jak cukrzyca, choroba Parkinsona, niewydolność serca
  • Niewłaściwe odżywianie i niedobory witamin
  • Przedłużone unieruchomienie lub leżenie w łóżku
  • Odwodnienie
  • Ciąża

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  1. 09.04.2026
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Materiały źródłowe

  • #1 Low blood pressure (hypotension) – Symptoms and causes – Mayo Clinic
    https://www.mayoclinic.org/diseases-conditions/low-blood-pressure/symptoms-causes/syc-20355465
    Low blood pressure has various causes. Some health conditions and the use of certain medicines can cause it. Other factors affect blood pressure as well. […] The causes of low blood pressure include dehydration and other serious medical conditions. It’s important to find out what’s causing low blood pressure so that it can be treated, if needed. […] Medical conditions that can cause low blood pressure include: Pregnancy. Changes during pregnancy cause blood vessels to expand fast. The changes may cause blood pressure to drop. Low blood pressure is common in the first 24 weeks of pregnancy. After a person gives birth, blood pressure usually returns to the level that it was before pregnancy. […] Heart and heart valve conditions. A heart attack, heart failure, heart valve disease and a slow heart rate called bradycardia can cause low blood pressure.
  • #2 Low blood pressure (hypotension) | Beacon Health System
    https://www.beaconhealthsystem.org/library/diseases-and-conditions/low-blood-pressure-hypotension?content_id=CON-20248754
    Low blood pressure is a condition in which the force of the blood pushing against the artery walls is too low. It’s also called hypotension. […] The causes of low blood pressure include dehydration and other serious medical conditions. It’s important to find out what’s causing low blood pressure so that it can be treated, if needed. […] Medical conditions that can cause low blood pressure include: Pregnancy. Changes during pregnancy cause blood vessels to expand fast. The changes may cause blood pressure to drop. Low blood pressure is common in the first 24 weeks of pregnancy. After a person gives birth, blood pressure usually returns to the level that it was before pregnancy. […] Heart and heart valve conditions. A heart attack, heart failure, heart valve disease and a slow heart rate called bradycardia can cause low blood pressure.
  • #3 Blood pressure (low) – hypotension | Better Health Channel
    https://www.betterhealth.vic.gov.au/health/conditionsandtreatments/blood-pressure-low-hypotension
    Hypotension, or low blood pressure, means that the pressure of blood circulating around the body is lower than normal or lower than expected. […] Some causes of hypotension include blood loss, dehydration and certain medications, such as antihypertensive drugs. […] Low blood pressure has many different causes including: Emotional stress, fear, insecurity or pain (the most common causes of fainting), Dehydration, which reduces blood volume, The body’s reaction to heat, which is to shunt blood into the vessels of the skin, leading to dehydration, Blood donation, Internal bleeding, such as a perforated stomach ulcer, Blood loss from trauma, such as a road accident or deep cut, Pregnancy, Medications for high blood pressure, Diuretics, which produce fluid loss, Medications for depression, Medications for certain heart conditions, Allergic reaction to certain drugs or chemicals, Some forms of infection, such as toxic shock syndrome, Heart disease, which can hamper the pumping action of the heart muscle, Some nervous system disorders, such as Parkinson’s disease, Addison’s disease (where the adrenal glands fail to produce sufficient blood-pressure-maintaining hormones).
  • #4 Causes of low blood pressure (hypotension)
    https://www.medicalnewstoday.com/articles/what-causes-low-blood-pressure
    Possible causes of low blood pressure, or hypotension, range from dehydration to a heart condition. […] Low blood pressure may be genetic or occur as a result of aging. In some cases, a temporary factor, such as pregnancy or dehydration, is responsible. In others, low blood pressure results from an underlying disease or a severe reaction. […] Many factors affect blood pressure, including the time of day and a persons physical activity levels and diet. Blood pressure also declines with age, and some people have naturally low blood pressure due to genetic factors. […] Some potentially more severe health issues can also cause low blood pressure, including: Nutrient deficiencies: These might involve vitamin B12 or folic acid. Neurally mediated hypotension: This disorder causes a drop in blood pressure after the person has been standing up for a prolonged period. Endocrine problems: These affect the regulation of the bodys hormones. One example is hypothyroidism, also known as an underactive thyroid. Heart problems: These can limit how effectively the heart pushes blood around the body. Septic shock: This is a potentially life threatening response to a severe bacterial infection. Anaphylactic shock: This is a potentially life threatening complication of anaphylaxis, which is a severe allergic reaction.
  • #5 Blood Pressure UK
    https://www.bloodpressureuk.org/your-blood-pressure/understanding-your-blood-pressure/what-is-low-blood-pressure/
    Low blood pressure, also known as hypotension, is when you have a blood pressure level that is below the normal range. […] Low blood pressure can sometimes be caused by medications or can be a sign of another health problem. […] Low blood pressure can also be caused by an illness or health problem. […] Low blood pressure, and low blood pressure when you stand up, can be caused by medications. These include medications to lower blood pressure, antidepressants and beta blockers, which are used to treat heart problems. […] Some people have a blood pressure level that is naturally low. That is, there is no specific cause or reason why. It can be the result of a healthy lifestyle and being fit and active, and your genes may play a role. […] Your blood pressure varies throughout the day. It might drop when you’ve just eaten while your blood is carried to your gut, if you’ve been standing up for a long time, if you’re dehydrated, and if the temperature is warm.
  • #6 Low blood Pressure: Six Common Causes | Holland & BarrettInstagramPinterestFacebookTwitter
    https://www.hollandandbarrett.com/the-health-hub/conditions/heart-health/blood-pressure/six-common-causes-of-low-blood-pressure/
    Six common causes of low blood pressure. […] While low blood pressure isn’t as troubling as high blood pressure, it’s still worth getting to the bottom of what’s causing it so you can address it. Here are six common causes of low blood pressure. […] There could be a number of factors triggering low pressure. […] The main causes of low blood pressure. […] Staying active helps keep your blood pressure low. […] A 2007 study by the Erasmus Medical Centre in Rotterdam found that your genes may play a role in whether you’re prone to higher or lower blood pressure. […] Blood pressure falls overnight; if you test yours early in the day, it may well be lower than if you tested in the afternoon. […] In the first 24 weeks of pregnancy, your blood vessels expand to boost blood flow to the uterus, reducing your blood pressure.
  • #7 Low blood pressure (hypotension) | nidirect
    https://www.nidirect.gov.uk/conditions/low-blood-pressure-hypotension
    Low blood pressure (hypotension) has many possible causes, from lifestyle choices, to medication or an underlying health condition. […] In some cases, it may just be the result of being healthy and active or a tendency you’ve inherited from your parents. […] Throughout the day, it’s normal for your blood pressure to vary depending on what you’re doing. Stress at work, the temperature outside and your diet could all affect your blood pressure reading.
  • #8 Low blood pressure (hypotension) – Symptoms and causes – Mayo Clinic
    https://www.mayoclinic.org/diseases-conditions/low-blood-pressure/symptoms-causes/syc-20355465
    Hormone-related diseases, also called endocrine conditions. Conditions such as Addison’s disease that affect certain glands that make key hormones may cause blood pressure to drop. Low blood sugar, also called hypoglycemia, may lower blood pressure too. So might diabetes. […] Dehydration. When the body doesn’t have enough water, the amount of blood in the body declines. This can cause blood pressure to drop. Fever, vomiting, severe diarrhea, overuse of diuretic medicines and strenuous exercise can lead to dehydration. […] Blood loss. Losing a lot of blood also reduces blood volume, leading to a severe drop in blood pressure. Causes of serious blood loss include injuries and internal bleeding. […] Severe infection. When an infection in the body enters the bloodstream, it can lead to a life-threatening drop in blood pressure called septic shock. Another name for an infection that happens when germs get into the blood and spread is septicemia.
  • #9 Low Blood Pressure (Hypotension): Causes & Symptoms
    https://my.clevelandclinic.org/health/diseases/21156-low-blood-pressure-hypotension
    Low blood pressure is a reading below 90/60 mm Hg. Many issues can cause low blood pressure. Treatment varies depending on whats causing it. […] Hypotension can happen for a wide range of reasons. Causes of low blood pressure include: […] Orthostatic hypotension: This happens when you stand up too quickly and your body cant compensate with more blood flow to your brain. […] Central nervous system diseases: Conditions like Parkinsons disease can affect how your nervous system controls your blood pressure. […] Low blood volume: Blood loss from severe injuries can cause low blood pressure. Dehydration can also contribute to low blood volume. […] Life-threatening conditions: These conditions include irregular heart rhythms (arrhythmias), pulmonary embolism (PE), heart attacks and collapsed lung. Life-threatening allergic reactions (anaphylaxis) or immune reactions to severe infections (sepsis) can also cause hypotension.
  • #10 Blood pressure (low) – hypotension | Better Health Channel
    https://www.betterhealth.vic.gov.au/health/conditionsandtreatments/blood-pressure-low-hypotension
    Hypotension, or low blood pressure, means that the pressure of blood circulating around the body is lower than normal or lower than expected. […] Some causes of hypotension include blood loss, dehydration and certain medications, such as antihypertensive drugs. […] Low blood pressure has many different causes including: Emotional stress, fear, insecurity or pain (the most common causes of fainting), Dehydration, which reduces blood volume, The body’s reaction to heat, which is to shunt blood into the vessels of the skin, leading to dehydration, Blood donation, Internal bleeding, such as a perforated stomach ulcer, Blood loss from trauma, such as a road accident or deep cut, Pregnancy, Medications for high blood pressure, Diuretics, which produce fluid loss, Medications for depression, Medications for certain heart conditions, Allergic reaction to certain drugs or chemicals, Some forms of infection, such as toxic shock syndrome, Heart disease, which can hamper the pumping action of the heart muscle, Some nervous system disorders, such as Parkinson’s disease, Addison’s disease (where the adrenal glands fail to produce sufficient blood-pressure-maintaining hormones).
  • #11 Passing out and feeling weak? The many causes of low blood pressure
    https://www.citymd.com/health-and-wellness/passing-out-feeling-weak-many-causes-low-blood-pressure
    Feeling weak, dizzy, tired, or lethargic? You may have low blood pressure, also known as hypotension. A low reading means your blood pressure has fallen below 90/60 mmHg. […] There are many reasons why your blood pressure may be low. Some include: […] Dehydration. When the body does not get enough water, the blood volume decreases. […] Orthostatic hypotension. A drop in blood pressure that occurs upon standing usually after sitting or lying down for a prolonged period. […] Pregnancy. During the first 24 weeks of pregnancy, its common for the blood pressure to drop because more blood supply is needed. […] Major blood loss. A decrease in blood volume from trauma, dehydration, or severe internal bleeding will lead to a severe drop in blood pressure. […] Certain medications. Several drugs can cause low blood pressure, including diuretics, beta-blockers, tricyclic antidepressants, erectile dysfunction medications, and more.
  • #12 Hypotension (Low Blood Pressure) | Cardiology | Mercy Health
    https://www.mercy.com/health-care-services/heart-vascular/conditions/low-blood-pressure
    Hypotension is abnormally low blood pressure (lower than 90/60 mm Hg). If your blood pressure gets too low, it can cause dizziness, fainting or death. […] Low blood pressure is not a condition that is usually treated except if it occurs in the elderly or occurs suddenly. In patients over 65, it could indicate the brain and limbs are not receiving adequate blood supply. If your blood pressure drops suddenly, it could deprive the brain of blood, which can lead to lightheadedness or dizziness. […] There are several causes of hypotension including: Prolonged bed rest, Pregnancy, Low or high body temperature, Excessive blood loss, Severe dehydration, Blood infections such as sepsis, Anaphylaxis allergic reaction, Reactions to medication or alcohol. […] Age your risk of low pressure increases as you age. Approximately 10-20% of people older than 65 have postural hypotension.
  • #13 Hypotension: Low Blood Pressure Symptoms and Causes
    https://cprcare.com/blog/low-bp-symptoms-and-causes/
    Low blood pressure (BP) reduces blood flow to organs, causing fatigue, weakness, unconsciousness, heart illness, and life-threatening shock. […] Understanding the Causes of Low Blood Pressure […] The common causes of low blood pressure are listed below. […] Dehydration decreases the blood volume, leading to a drop in blood pressure. […] When the heart rate is too slow to pump blood effectively, the blood pressure level drops. […] A person suffering from hormonal imbalances or disorders like adrenal insufficiency, hypothyroidism, and diabetes is more prone to low BP issues. […] Sepsis, also known as Septicemia, is a widespread infection that spreads via the bloodstream. […] Excessive bleeding due to injury, surgery, or internal bleeding causes body fluid loss. […] Nutrients like Vitamin B12 and Folic Acid produce red blood cells; hence, their deficiency can cause anemia. […] Some medications, specifically high-BP treatment drugs, can reduce the BP level lower than the normal level.
  • #14 Low blood pressure (hypotension) – Symptoms and causes – Mayo Clinic
    https://www.mayoclinic.org/diseases-conditions/low-blood-pressure/symptoms-causes/syc-20355465
    Hormone-related diseases, also called endocrine conditions. Conditions such as Addison’s disease that affect certain glands that make key hormones may cause blood pressure to drop. Low blood sugar, also called hypoglycemia, may lower blood pressure too. So might diabetes. […] Dehydration. When the body doesn’t have enough water, the amount of blood in the body declines. This can cause blood pressure to drop. Fever, vomiting, severe diarrhea, overuse of diuretic medicines and strenuous exercise can lead to dehydration. […] Blood loss. Losing a lot of blood also reduces blood volume, leading to a severe drop in blood pressure. Causes of serious blood loss include injuries and internal bleeding. […] Severe infection. When an infection in the body enters the bloodstream, it can lead to a life-threatening drop in blood pressure called septic shock. Another name for an infection that happens when germs get into the blood and spread is septicemia.
  • #15 Low Blood Pressure – When Blood Pressure Is Too Low | American Heart Association
    https://www.heart.org/en/health-topics/high-blood-pressure/the-facts-about-high-blood-pressure/low-blood-pressure-when-blood-pressure-is-too-low
    A lack of the essential vitamins B-12 and folic acid can cause anemia, a lower-than-normal amount of healthy red blood cells. This can lead to low blood pressure. […] Septic shock: This can occur when bacteria from an infection enter the bloodstream. The bacteria then produce toxins that affect the blood vessels. This can lead to dangerously low blood pressure. […] Anaphylactic shock is an allergic reaction that can lead to death. […] A significant loss of blood from major trauma or severe internal bleeding reduces blood volume. This can lead to a severe drop in blood pressure.
  • #16 Passing out and feeling weak? The many causes of low blood pressure
    https://www.citymd.com/health-and-wellness/passing-out-feeling-weak-many-causes-low-blood-pressure
    Feeling weak, dizzy, tired, or lethargic? You may have low blood pressure, also known as hypotension. A low reading means your blood pressure has fallen below 90/60 mmHg. […] There are many reasons why your blood pressure may be low. Some include: […] Dehydration. When the body does not get enough water, the blood volume decreases. […] Orthostatic hypotension. A drop in blood pressure that occurs upon standing usually after sitting or lying down for a prolonged period. […] Pregnancy. During the first 24 weeks of pregnancy, its common for the blood pressure to drop because more blood supply is needed. […] Major blood loss. A decrease in blood volume from trauma, dehydration, or severe internal bleeding will lead to a severe drop in blood pressure. […] Certain medications. Several drugs can cause low blood pressure, including diuretics, beta-blockers, tricyclic antidepressants, erectile dysfunction medications, and more.
  • #17 Hypotension – Wikipedia
    https://en.wikipedia.org/wiki/Hypotension
    Low blood pressure can be caused by low blood volume, hormonal changes, pregnancy, widening of blood vessels, medicine side effects, severe dehydration, anemia, vitamin B12 deficiency, anaphylaxis, heart problems or endocrine problems. […] Reduced blood volume, hypovolemia, is the most common cause of hypotension. This can result from hemorrhage; insufficient fluid intake, as in starvation; or excessive fluid losses from diarrhea or vomiting. Hypovolemia can be induced by excessive use of diuretics. Low blood pressure may also be attributed to heat stroke which can be indicated by absence of perspiration, light headedness and dark colored urine. […] Other medications can produce hypotension by different mechanisms. Chronic use of alpha blockers or beta blockers can lead to hypotension. Beta blockers can cause hypotension both by slowing the heart rate and by decreasing the pumping ability of the heart muscle.
  • #18 Low blood pressure (hypotension) – Symptoms and causes – Mayo Clinic
    https://www.mayoclinic.org/diseases-conditions/low-blood-pressure/symptoms-causes/syc-20355465
    Low blood pressure has various causes. Some health conditions and the use of certain medicines can cause it. Other factors affect blood pressure as well. […] The causes of low blood pressure include dehydration and other serious medical conditions. It’s important to find out what’s causing low blood pressure so that it can be treated, if needed. […] Medical conditions that can cause low blood pressure include: Pregnancy. Changes during pregnancy cause blood vessels to expand fast. The changes may cause blood pressure to drop. Low blood pressure is common in the first 24 weeks of pregnancy. After a person gives birth, blood pressure usually returns to the level that it was before pregnancy. […] Heart and heart valve conditions. A heart attack, heart failure, heart valve disease and a slow heart rate called bradycardia can cause low blood pressure.
  • #19 Low Blood Pressure – When Blood Pressure Is Too Low | American Heart Association
    https://www.heart.org/en/health-topics/high-blood-pressure/the-facts-about-high-blood-pressure/low-blood-pressure-when-blood-pressure-is-too-low
    Low blood pressure is usually not harmful unless there are other concerning symptoms. […] There are many possible causes of low blood pressure. […] Low blood pressure can happen with: Prolonged bed rest, Prolonged standing, Depression, Parkinson’s disease, Pregnancy, Dehydration, Certain medications and substances can cause low blood pressure including: Diuretics and other drugs that treat high blood pressure, Heart medications such as beta blockers, Drugs for Parkinson’s disease, Tricyclic antidepressants, Erectile dysfunction drugs, particularly in combination with nitroglycerine, Narcotics. […] Heart conditions that can lead to low blood pressure are: Abnormally low heart rate (bradycardia), Heart valve problems, Heart attack, Heart failure. […] Endocrine problems: Underactive thyroid, Addison’s disease, Low blood sugar, Diabetes.
  • #20 Orthostatic hypotension (postural hypotension) – Symptoms & causes – Mayo Clinic
    https://www.mayoclinic.org/diseases-conditions/orthostatic-hypotension/symptoms-causes/syc-20352548
    Orthostatic hypotension occurs when something interrupts the body’s process of dealing with the low blood pressure. Many conditions can cause orthostatic hypotension, including: […] Dehydration decreases blood volume. Mild dehydration can cause symptoms of orthostatic hypotension, such as weakness, dizziness and fatigue. […] Some heart conditions that can lead to low blood pressure include extremely low heart rate (bradycardia), heart valve problems, heart attack and heart failure. […] Thyroid conditions, adrenal insufficiency (Addison’s disease) and low blood sugar (hypoglycemia) can cause orthostatic hypotension. […] Some nervous system disorders, such as Parkinson’s disease, multiple system atrophy, Lewy body dementia, pure autonomic failure and amyloidosis, can disrupt the body’s ability to control blood pressure. […] Some people have low blood pressure after eating meals (postprandial hypotension). This condition is more common in older adults.
  • #21 Hypotension – Wikipedia
    https://en.wikipedia.org/wiki/Hypotension
    Decreased cardiac output despite normal blood volume, due to severe congestive heart failure, large myocardial infarction, heart valve problems, or extremely low heart rate (bradycardia), often produces hypotension and can rapidly progress to cardiogenic shock. Arrhythmias often result in hypotension by this mechanism. […] Excessive vasodilation, or insufficient constriction of the blood vessels (mostly arterioles), causes hypotension. This can be due to decreased sympathetic nervous system output or to increased parasympathetic activity occurring as a consequence of injury to the brain or spinal cord. Dysautonomia, an intrinsic abnormality in autonomic system functioning, can also lead to hypotension. Excessive vasodilation can also result from sepsis, acidosis, or medications, such as nitrate preparations, calcium channel blockers, or AT1 receptor antagonists (Angiotensin II acts on AT1 receptors). Many anesthetic agents and techniques, including spinal anesthesia and most inhalational agents, produce significant vasodilation.
  • #22 Low Blood Pressure (Hypotension): Causes, Symptoms, and Treatment Options
    https://asianheartinstitute.org/blog/low-blood-pressure-hypotension-causes-symptoms-treatment/
    Low Blood Pressure Hypotension Causes Symptoms Treatment Blood pressure lower than the normal range is referred to as hypotension. Hypotension, or low blood pressure, occurs when the force of blood against artery walls drops below normal levels. […] Understanding the underlying causes of hypotension is key to its effective management. Low blood pressure can arise from lifestyle factors, medical conditions, or a combination of both. Let’s go through some of the common causes of hypotension: […] Dehydration happens when the body loses more fluids than it absorbs. This reduces blood volume, causing symptoms like fatigue, dizziness, and weakness. This is one of the common causes of low blood pressure. […] Some heart conditions can cause low blood pressure, including: Bradycardia (very low heart rate), where the heart can’t pump enough blood to meet the body’s needs. Heart attack or heart failure, both of which reduce the heart’s ability to pump blood effectively. Valvular heart disease, where damaged heart valves disrupt blood flow, leading to hypotension.
  • #23 Hypotension – StatPearls – NCBI Bookshelf
    https://www.ncbi.nlm.nih.gov/books/NBK499961/
    Hypotension can arise from various causes, such as volume depletion, cardiac dysfunction, autonomic failure, or medication effects. […] Blood pressure is primarily determined by cardiac output and total peripheral vascular resistance. Any disease or pathology that affects one or both of these parameters can lead to hypotension. […] Medications can also contribute to hypotension. -blockers and calcium channel blockers are often used to lower heart rate in individuals with tachydysrhythmias like atrial fibrillation and supraventricular tachycardia. […] Acute disease processes that can lead to hypotension are generally categorized into 4 broad groups: distributive shock, cardiogenic shock, hypovolemic shock, and obstructive shock. […] Hypovolemic shock is characterized by a loss of total blood volume, leading to hypotension.
  • #24 Low Blood Pressure (Hypotension) Symptoms, Treatment, Causes, Chart
    https://www.emedicinehealth.com/low_blood_pressure/article_em.htm
    Low blood pressure in itself may be less important than the symptoms associated with it. […] Treatment will be based upon the cause of low blood pressure. […] If low blood pressure causes clinical symptoms, the cause will be in one of three general categories. […] Either the heart is not pumping with enough pressure, the artery walls are too dilated, or there is not enough intravascular fluid (within blood vessels) within the system. […] If the heart beats too quickly, blood pressure may fall because there isn’t enough time for the heart to refill in between each beat (diastole). […] If the heart muscle has been damaged or irritated, there may not be enough pumping force to maintain blood pressure. […] Dehydration, the loss of water, decreases the total volume in the intravascular space (inside the blood vessels).
  • #25 Low blood pressure (hypotension) – Symptoms and causes – Mayo Clinic
    https://www.mayoclinic.org/diseases-conditions/low-blood-pressure/symptoms-causes/syc-20355465
    Hormone-related diseases, also called endocrine conditions. Conditions such as Addison’s disease that affect certain glands that make key hormones may cause blood pressure to drop. Low blood sugar, also called hypoglycemia, may lower blood pressure too. So might diabetes. […] Dehydration. When the body doesn’t have enough water, the amount of blood in the body declines. This can cause blood pressure to drop. Fever, vomiting, severe diarrhea, overuse of diuretic medicines and strenuous exercise can lead to dehydration. […] Blood loss. Losing a lot of blood also reduces blood volume, leading to a severe drop in blood pressure. Causes of serious blood loss include injuries and internal bleeding. […] Severe infection. When an infection in the body enters the bloodstream, it can lead to a life-threatening drop in blood pressure called septic shock. Another name for an infection that happens when germs get into the blood and spread is septicemia.
  • #26 Low Blood Pressure – When Blood Pressure Is Too Low | American Heart Association
    https://www.heart.org/en/health-topics/high-blood-pressure/the-facts-about-high-blood-pressure/low-blood-pressure-when-blood-pressure-is-too-low
    Low blood pressure is usually not harmful unless there are other concerning symptoms. […] There are many possible causes of low blood pressure. […] Low blood pressure can happen with: Prolonged bed rest, Prolonged standing, Depression, Parkinson’s disease, Pregnancy, Dehydration, Certain medications and substances can cause low blood pressure including: Diuretics and other drugs that treat high blood pressure, Heart medications such as beta blockers, Drugs for Parkinson’s disease, Tricyclic antidepressants, Erectile dysfunction drugs, particularly in combination with nitroglycerine, Narcotics. […] Heart conditions that can lead to low blood pressure are: Abnormally low heart rate (bradycardia), Heart valve problems, Heart attack, Heart failure. […] Endocrine problems: Underactive thyroid, Addison’s disease, Low blood sugar, Diabetes.
  • #27 Causes of low blood pressure (hypotension)
    https://www.medicalnewstoday.com/articles/what-causes-low-blood-pressure
    Possible causes of low blood pressure, or hypotension, range from dehydration to a heart condition. […] Low blood pressure may be genetic or occur as a result of aging. In some cases, a temporary factor, such as pregnancy or dehydration, is responsible. In others, low blood pressure results from an underlying disease or a severe reaction. […] Many factors affect blood pressure, including the time of day and a persons physical activity levels and diet. Blood pressure also declines with age, and some people have naturally low blood pressure due to genetic factors. […] Some potentially more severe health issues can also cause low blood pressure, including: Nutrient deficiencies: These might involve vitamin B12 or folic acid. Neurally mediated hypotension: This disorder causes a drop in blood pressure after the person has been standing up for a prolonged period. Endocrine problems: These affect the regulation of the bodys hormones. One example is hypothyroidism, also known as an underactive thyroid. Heart problems: These can limit how effectively the heart pushes blood around the body. Septic shock: This is a potentially life threatening response to a severe bacterial infection. Anaphylactic shock: This is a potentially life threatening complication of anaphylaxis, which is a severe allergic reaction.
  • #28 Low Blood Pressure (Hypotension): Causes, Symptoms, and Treatment Options
    https://asianheartinstitute.org/blog/low-blood-pressure-hypotension-causes-symptoms-treatment/
    Severe blood loss from an injury or internal bleeding reduces the amount of blood in your body, thereby reducing blood pressure. […] Hormonal imbalances caused by problems with the endocrine glands can also lead to low blood pressure. Such conditions include: Underactive thyroid (hypothyroidism) Addison’s disease (adrenal insufficiency) Low blood sugar (hypoglycemia) […] If an infection enters the blood (sepsis), it can cause critical hypotension. […] Some antihypertensive medications, such as alpha-blockers or beta-blockers, cause low blood pressure. […] A diet that lacks certain nutrients, vitamin B12, folate, and iron prevents your body from creating enough red blood cells. This leads to a condition referred to as anemia and causes low blood pressure. […] The circulatory system enlarges during pregnancy, which can cause blood pressure to decrease. […] Postural (Orthostatic) Hypotension occurs when blood pressure drops significantly upon standing up. […] Long periods in bed can make the circulatory system weak, and patients who are in post-surgery recovery or chronic sufferers may experience low blood pressure.
  • #29 Low Blood Pressure (Hypotension) Causes, Symptoms, Medication
    https://www.medicinenet.com/low_blood_pressure/article.htm
    Moderate or severe bleeding can quickly deplete an individual’s body of blood, leading to low blood pressure or orthostatic hypotension. […] Weakened heart muscle can cause the heart to fail and reduce the amount of blood it pumps. […] Medications such as calcium channel blockers, beta blockers, and digoxin (Lanoxin) can slow the rate at which the heart contracts. […] The vasovagal reaction is a common condition in which a healthy person temporarily develops low blood pressure, slow heart rate, and sometimes fainting. […] Postural (orthostatic) hypotension is a sudden drop in blood pressure when an individual stands up from a sitting, squatting or supine (lying) position. […] Addison’s disease is a disorder in which the adrenal glands (small glands next to the kidneys) are destroyed.
  • #30 Hypotension (Low Blood Pressure): Causes, Symptoms, and Treatment
    https://patient.info/doctor/hypotension
    Multiple system atrophy (Shy-Drager syndrome) and pure autonomic failure (Bradbury-Eggleston syndrome) are primary neuropathies that cause severe orthostatic hypotension as a result of widespread damage to the autonomic system. […] In the acute form, hypotension can be a serious clinical feature that may cause renal, cerebral and myocardial hypoxic damage. […] The cause of hypotension and shock among traumatic patients is often hypovolaemia due to blood loss. […] Other causes include: Vasodilatation – from antihypertensive drugs, heat exposure. […] Addison’s disease (autoimmune adrenal failure): systolic BP is rarely 110 mm Hg, symptoms of postural hypotension are common and reactive hypoglycaemia after carbohydrates may masquerade as postprandial hypotension. […] 40-80% of people with autonomic dysfunction will have postprandial hypotension.
  • #31 Low Blood Pressure (Hypotension): Causes & Symptoms
    https://my.clevelandclinic.org/health/diseases/21156-low-blood-pressure-hypotension
    Low blood pressure is a reading below 90/60 mm Hg. Many issues can cause low blood pressure. Treatment varies depending on whats causing it. […] Hypotension can happen for a wide range of reasons. Causes of low blood pressure include: […] Orthostatic hypotension: This happens when you stand up too quickly and your body cant compensate with more blood flow to your brain. […] Central nervous system diseases: Conditions like Parkinsons disease can affect how your nervous system controls your blood pressure. […] Low blood volume: Blood loss from severe injuries can cause low blood pressure. Dehydration can also contribute to low blood volume. […] Life-threatening conditions: These conditions include irregular heart rhythms (arrhythmias), pulmonary embolism (PE), heart attacks and collapsed lung. Life-threatening allergic reactions (anaphylaxis) or immune reactions to severe infections (sepsis) can also cause hypotension.
  • #32 Low Blood Pressure (Hypotension): Causes, Symptoms, & More
    https://www.healthline.com/health/hypotension
    Low blood pressure can make you feel dizzy. […] The medical term for low blood pressure is hypotension. […] Hypotension in adults is defined as a blood pressure reading of lower than 90/60. […] There are several types of hypotension. Low blood pressure is categorized according to when it happens and whats causing it. […] Orthostatic hypotension (also called postural hypotension) is the drop in blood pressure that occurs when you move from sitting or lying down to standing. […] Conditions affecting the autonomic nervous system, such as Parkinsons disease and diabetes, can often lead to orthostatic hypotension. […] Postprandial hypotension is a drop in blood pressure that occurs after eating. […] Neurally mediated hypotension happens when there is an abnormal reflex interaction between the heart and the brain.
  • #33 Orthostatic hypotension (postural hypotension) – Symptoms & causes – Mayo Clinic
    https://www.mayoclinic.org/diseases-conditions/orthostatic-hypotension/symptoms-causes/syc-20352548
    Orthostatic hypotension occurs when something interrupts the body’s process of dealing with the low blood pressure. Many conditions can cause orthostatic hypotension, including: […] Dehydration decreases blood volume. Mild dehydration can cause symptoms of orthostatic hypotension, such as weakness, dizziness and fatigue. […] Some heart conditions that can lead to low blood pressure include extremely low heart rate (bradycardia), heart valve problems, heart attack and heart failure. […] Thyroid conditions, adrenal insufficiency (Addison’s disease) and low blood sugar (hypoglycemia) can cause orthostatic hypotension. […] Some nervous system disorders, such as Parkinson’s disease, multiple system atrophy, Lewy body dementia, pure autonomic failure and amyloidosis, can disrupt the body’s ability to control blood pressure. […] Some people have low blood pressure after eating meals (postprandial hypotension). This condition is more common in older adults.
  • #34 Hypotension (Low Blood Pressure): Causes, Symptoms, and Treatment
    https://patient.info/doctor/hypotension
    Multiple system atrophy (Shy-Drager syndrome) and pure autonomic failure (Bradbury-Eggleston syndrome) are primary neuropathies that cause severe orthostatic hypotension as a result of widespread damage to the autonomic system. […] In the acute form, hypotension can be a serious clinical feature that may cause renal, cerebral and myocardial hypoxic damage. […] The cause of hypotension and shock among traumatic patients is often hypovolaemia due to blood loss. […] Other causes include: Vasodilatation – from antihypertensive drugs, heat exposure. […] Addison’s disease (autoimmune adrenal failure): systolic BP is rarely 110 mm Hg, symptoms of postural hypotension are common and reactive hypoglycaemia after carbohydrates may masquerade as postprandial hypotension. […] 40-80% of people with autonomic dysfunction will have postprandial hypotension.
  • #35 Low Blood Pressure (Hypotension): Causes, Treatment, & More – K Health
    https://khealth.com/learn/hypotension/low-blood-pressure/
    Low blood pressure is divided into several different types, which are differentiated by their causes. […] Orthostatic hypotension (or postural hypotension) is when blood pressure drops due to a change in positionmost commonly, when someone goes from lying down to standing up. […] Postprandial hypotension is when blood pressure drops 1-2 hours after eating a meal. […] Neurally mediated hypotension (also known as vasovagal syncope or the fainting reflex) is when blood pressure drops after standing for a long time, or in response to stress or fear. […] Another type of hypotension, known as Shy-Drager syndrome, occurs when there is damage to the autonomic nervous system. […] If blood pressure readings indicate low blood pressure that is abnormal for you, your doctor or provider will work with you to determine the underlying cause.
  • #36 Low Blood Pressure (Hypotension) Symptoms, Treatment, Causes, Chart
    https://www.emedicinehealth.com/low_blood_pressure/article_em.htm
    Bleeding decreases the number of red blood cells in the blood stream and leads to a decreased amount of fluid in the intravascular space and low blood pressure. […] Loss of the sympathetic tone may occur with injuries to the spine and damage to the sympathetic trunk, resulting in dilation of the blood vessels and lowered blood pressure. […] Major allergic reactions (anaphylactic shock) can cause marked dilation of blood vessels and low blood pressure. […] When standing quickly, it may take a second or two for the body to make adjustments to constrict blood vessels and push blood up to the brain. […] One of the complications of diabetes is damage to the nerves in the body, including those in the autonomic nervous system. […] If low blood pressure causes a lack of blood flow to the organs of the body, then those organs will start to fail.
  • #37 Low blood pressure (hypotension) – Symptoms and causes – Mayo Clinic
    https://www.mayoclinic.org/diseases-conditions/low-blood-pressure/symptoms-causes/syc-20355465
    Hormone-related diseases, also called endocrine conditions. Conditions such as Addison’s disease that affect certain glands that make key hormones may cause blood pressure to drop. Low blood sugar, also called hypoglycemia, may lower blood pressure too. So might diabetes. […] Dehydration. When the body doesn’t have enough water, the amount of blood in the body declines. This can cause blood pressure to drop. Fever, vomiting, severe diarrhea, overuse of diuretic medicines and strenuous exercise can lead to dehydration. […] Blood loss. Losing a lot of blood also reduces blood volume, leading to a severe drop in blood pressure. Causes of serious blood loss include injuries and internal bleeding. […] Severe infection. When an infection in the body enters the bloodstream, it can lead to a life-threatening drop in blood pressure called septic shock. Another name for an infection that happens when germs get into the blood and spread is septicemia.
  • #38 Low Blood Pressure – When Blood Pressure Is Too Low | American Heart Association
    https://www.heart.org/en/health-topics/high-blood-pressure/the-facts-about-high-blood-pressure/low-blood-pressure-when-blood-pressure-is-too-low
    A lack of the essential vitamins B-12 and folic acid can cause anemia, a lower-than-normal amount of healthy red blood cells. This can lead to low blood pressure. […] Septic shock: This can occur when bacteria from an infection enter the bloodstream. The bacteria then produce toxins that affect the blood vessels. This can lead to dangerously low blood pressure. […] Anaphylactic shock is an allergic reaction that can lead to death. […] A significant loss of blood from major trauma or severe internal bleeding reduces blood volume. This can lead to a severe drop in blood pressure.
  • #39 Passing out and feeling weak? The many causes of low blood pressure
    https://www.citymd.com/health-and-wellness/passing-out-feeling-weak-many-causes-low-blood-pressure
    Heart problems. Your heart may not be able to circulate enough blood to meet your bodys needs. […] Severe infection (septic shock): Septic shock can occur when bacteria leave the original site of an infection and enter the bloodstream. […] Allergic reaction (anaphylaxis): Anaphylactic shock is a sometimes fatal allergic reaction that causes a dramatic drop in blood pressure. […] Endocrine problems. Complications with hormone-producing glands in the bodys endocrine systems can lead to a drop in pressure, specifically, an underactive thyroid (hypothyroidism), parathyroid disease, adrenal insufficiency (Addisons disease), low blood sugar, and diabetes.
  • #40 Hypotension: Causes, Symptoms, Treatments | Saber Healthcare
    https://www.saberhealth.com/news/blog/causes-of-hypotension
    Medications that are diuretics and treat high blood pressure can cause low blood pressure. Other drugs linked to hypotension include medications for Parkinson’s disease, heart medications that are beta-blockers, alpha-blockers, antidepressants, erectile dysfunction drugs (specifically ones in combination with nitroglycerine), and water pills. […] A severe allergic reaction can cause blood pressure to lower. This usually occurs in people who have severe reactions to medications or animals such as bees. […] When bacteria gets into the bloodstream, it can produce toxins that affect the blood vessels and lowers blood pressure.
  • #41 Low Blood Pressure (Hypotension) Causes, Symptoms, Medication
    https://www.medicinenet.com/low_blood_pressure/article.htm
    Septicemia is a severe infection in which bacteria (or other infectious organisms such as fungi) enter the blood. […] Anaphylaxis (anaphylactic shock) is a potentially fatal allergic reaction to medications such as penicillin, intravenous iodine used in some X-ray studies, foods such as peanuts, or bee stings (insect stings).
  • #42 Low blood pressure (hypotension) – Symptoms and causes – Mayo Clinic
    https://www.mayoclinic.org/diseases-conditions/low-blood-pressure/symptoms-causes/syc-20355465
    Severe allergic reaction, also called anaphylaxis. Symptoms of a severe allergic reaction include a sudden and large drop in blood pressure. […] Lack of nutrients in the diet. Low levels of vitamin B-12, folate and iron can keep the body from making enough red blood cells. A lack of healthy red blood cells is called anemia, and it can lead to low blood pressure.
  • #43 Low Blood Pressure – When Blood Pressure Is Too Low | American Heart Association
    https://www.heart.org/en/health-topics/high-blood-pressure/the-facts-about-high-blood-pressure/low-blood-pressure-when-blood-pressure-is-too-low
    A lack of the essential vitamins B-12 and folic acid can cause anemia, a lower-than-normal amount of healthy red blood cells. This can lead to low blood pressure. […] Septic shock: This can occur when bacteria from an infection enter the bloodstream. The bacteria then produce toxins that affect the blood vessels. This can lead to dangerously low blood pressure. […] Anaphylactic shock is an allergic reaction that can lead to death. […] A significant loss of blood from major trauma or severe internal bleeding reduces blood volume. This can lead to a severe drop in blood pressure.
  • #44 Low Blood Pressure (Hypotension) Causes, Symptoms, Medication
    https://www.medicinenet.com/low_blood_pressure/article.htm
    Septicemia is a severe infection in which bacteria (or other infectious organisms such as fungi) enter the blood. […] Anaphylaxis (anaphylactic shock) is a potentially fatal allergic reaction to medications such as penicillin, intravenous iodine used in some X-ray studies, foods such as peanuts, or bee stings (insect stings).
  • #45 What Is Hypotension?
    https://www.icliniq.com/articles/heart-circulatory-health/low-blood-pressure
    Eating Disorders – People with anorexia nervosa and bulimia have abnormally slow heart rate and irregular heartbeats, which can lead to serious hypotension and heart failure. […] Pregnancy – As the circulatory system expands during pregnancy, the systolic pressure falls 5 to 10 points, and the diastolic pressure falls 10 to 15 points. […] Surgery – Intentionally lowering the blood pressure during surgery results in less blood loss. […] Dehydration – When you lose more water and nutrients than you consume, it can cause dizziness and weakness. […] Septicemia – Septicemia is when an infection enters the bloodstream. This results in a drastic drop in the blood pressure called septic shock, which can be fatal. […] Anaphylaxis – Anaphylaxis is a severe allergic reaction which can be triggered by food, medicines, and insect bites. It causes hives, breathing problems, drop in blood pressure, and swollen throat.
  • #46 Low Blood Pressure (Hypotension) Symptoms, Treatment, Causes, Chart
    https://www.emedicinehealth.com/low_blood_pressure/article_em.htm
    Bleeding decreases the number of red blood cells in the blood stream and leads to a decreased amount of fluid in the intravascular space and low blood pressure. […] Loss of the sympathetic tone may occur with injuries to the spine and damage to the sympathetic trunk, resulting in dilation of the blood vessels and lowered blood pressure. […] Major allergic reactions (anaphylactic shock) can cause marked dilation of blood vessels and low blood pressure. […] When standing quickly, it may take a second or two for the body to make adjustments to constrict blood vessels and push blood up to the brain. […] One of the complications of diabetes is damage to the nerves in the body, including those in the autonomic nervous system. […] If low blood pressure causes a lack of blood flow to the organs of the body, then those organs will start to fail.
  • #47 Low blood pressure (hypotension) – Symptoms and causes – Mayo Clinic
    https://www.mayoclinic.org/diseases-conditions/low-blood-pressure/symptoms-causes/syc-20355465
    Severe allergic reaction, also called anaphylaxis. Symptoms of a severe allergic reaction include a sudden and large drop in blood pressure. […] Lack of nutrients in the diet. Low levels of vitamin B-12, folate and iron can keep the body from making enough red blood cells. A lack of healthy red blood cells is called anemia, and it can lead to low blood pressure.
  • #48 Low Blood Pressure – When Blood Pressure Is Too Low | American Heart Association
    https://www.heart.org/en/health-topics/high-blood-pressure/the-facts-about-high-blood-pressure/low-blood-pressure-when-blood-pressure-is-too-low
    A lack of the essential vitamins B-12 and folic acid can cause anemia, a lower-than-normal amount of healthy red blood cells. This can lead to low blood pressure. […] Septic shock: This can occur when bacteria from an infection enter the bloodstream. The bacteria then produce toxins that affect the blood vessels. This can lead to dangerously low blood pressure. […] Anaphylactic shock is an allergic reaction that can lead to death. […] A significant loss of blood from major trauma or severe internal bleeding reduces blood volume. This can lead to a severe drop in blood pressure.
  • #49 Low blood Pressure: Six Common Causes | Holland & BarrettInstagramPinterestFacebookTwitter
    https://www.hollandandbarrett.com/the-health-hub/conditions/heart-health/blood-pressure/six-common-causes-of-low-blood-pressure/
    If you don’t have enough B12 or folate in your diet, your body may not make enough red blood cells, and this can lead to low blood pressure. […] If you’ve not taken in enough fluids, you could be dehydrated, which causes low blood pressure. […] Some medications can trigger low blood pressure, so ask your GP to check if yours may be causing hypotension.
  • #50 What Is Hypotension?
    https://www.icliniq.com/articles/heart-circulatory-health/low-blood-pressure
    Nutritional Deficiency – Vitamin B12 and folate deficiency can cause anemia, which can lead to hypotension. […] Other Causes – Actions like swallowing, coughing, urinating, and emptying your bowel can stimulate the vagus nerve, which raises acetylcholine levels in the body. Acetylcholine reduces blood pressure by dilating the blood vessels.
  • #51 Low blood pressure (hypotension) | Beacon Health System
    https://www.beaconhealthsystem.org/library/diseases-and-conditions/low-blood-pressure-hypotension?content_id=CON-20248754
    Severe allergic reaction, also called anaphylaxis. Symptoms of a severe allergic reaction include a sudden and large drop in blood pressure. […] Lack of nutrients in the diet. Low levels of vitamin B-12, folate and iron can keep the body from making enough red blood cells. A lack of healthy red blood cells is called anemia, and it can lead to low blood pressure. […] Some medicines can cause low blood pressure, including: All blood pressure medicines. These include diuretics, alpha blockers and beta blockers. Examples of diuretics are furosemide (Lasix, Furoscix) and hydrochlorothiazide (Microzide). Alpha blockers include prazosin (Minipress). Some beta blockers are atenolol (Tenormin) and propranolol (Inderal LA, Innopran XL, others). […] Certain medicines have the potential to cause low blood pressure. These include all medicines that treat high blood pressure. […] Parkinson’s disease, diabetes and some heart conditions can lead to low blood pressure. […] Alcohol or illegal drugs. Either of these may raise the risk of low blood pressure.
  • #52 Low Blood Pressure (Hypotension): Causes, Symptoms, and Treatment Options
    https://asianheartinstitute.org/blog/low-blood-pressure-hypotension-causes-symptoms-treatment/
    Severe blood loss from an injury or internal bleeding reduces the amount of blood in your body, thereby reducing blood pressure. […] Hormonal imbalances caused by problems with the endocrine glands can also lead to low blood pressure. Such conditions include: Underactive thyroid (hypothyroidism) Addison’s disease (adrenal insufficiency) Low blood sugar (hypoglycemia) […] If an infection enters the blood (sepsis), it can cause critical hypotension. […] Some antihypertensive medications, such as alpha-blockers or beta-blockers, cause low blood pressure. […] A diet that lacks certain nutrients, vitamin B12, folate, and iron prevents your body from creating enough red blood cells. This leads to a condition referred to as anemia and causes low blood pressure. […] The circulatory system enlarges during pregnancy, which can cause blood pressure to decrease. […] Postural (Orthostatic) Hypotension occurs when blood pressure drops significantly upon standing up. […] Long periods in bed can make the circulatory system weak, and patients who are in post-surgery recovery or chronic sufferers may experience low blood pressure.
  • #53 Low Blood Pressure (Hypotension): Causes, Symptoms, & More
    https://www.healthline.com/health/hypotension
    Low blood pressure can make you feel dizzy. […] The medical term for low blood pressure is hypotension. […] Hypotension in adults is defined as a blood pressure reading of lower than 90/60. […] There are several types of hypotension. Low blood pressure is categorized according to when it happens and whats causing it. […] Orthostatic hypotension (also called postural hypotension) is the drop in blood pressure that occurs when you move from sitting or lying down to standing. […] Conditions affecting the autonomic nervous system, such as Parkinsons disease and diabetes, can often lead to orthostatic hypotension. […] Postprandial hypotension is a drop in blood pressure that occurs after eating. […] Neurally mediated hypotension happens when there is an abnormal reflex interaction between the heart and the brain.
  • #54 Orthostatic Hypotension (Postural Hypotension)
    https://my.clevelandclinic.org/health/diseases/9385-low-blood-pressure-orthostatic-hypotension
    Orthostatic hypotension is a sudden drop in blood pressure when you stand from a seated or prone (lying down) position. […] This type of low blood pressure is also called postural hypotension. […] A reading below 90/60 millimeters of mercury is considered low blood pressure. […] You have orthostatic hypotension if your blood pressure drops more than 20 millimeters of mercury in systolic pressure or 10 millimeters of mercury in diastolic pressure within three minutes of standing up. […] Orthostatic hypotension causes may include: Your heart cant pump as much blood as it should. […] Your blood volume is low because youve lost blood or fluids (dehydration). […] Your bodys reacting to a medication youre taking.
  • #55 Evaluation and Management of Orthostatic Hypotension | AAFP
    https://www.aafp.org/pubs/afp/issues/2011/0901/p527.html
    Orthostatic hypotension is defined as a decrease in systolic blood pressure of 20 mm Hg or a decrease in diastolic blood pressure of 10 mm Hg within three minutes of standing when compared with blood pressure from the sitting or supine position. It results from an inadequate physiologic response to postural changes in blood pressure. […] Causes include dehydration or blood loss; disorders of the neurologic, cardiovascular, or endocrine systems; and several classes of medications. […] Evaluation of suspected orthostatic hypotension begins by identifying reversible causes and underlying associated medical conditions. […] Orthostatic hypotension is often found in older patients and in those who are frail. […] In the absence of volume depletion, younger patients with orthostatic hypotension usually have chronic autonomic failure.
  • #56 Evaluation and Management of Orthostatic Hypotension | AAFP
    https://www.aafp.org/pubs/afp/issues/2011/0901/p527.html
    A related problem, postprandial hypotension, is common in older patients and those with autonomic dysfunction. […] Orthostatic hypotension may result if there is inadequate intravascular volume, autonomic nervous system dysfunction, decreased venous return, or inability to increase cardiac output in response to postural changes. […] Orthostatic hypotension is often neurogenic in patients whose history, physical examination, and laboratory testing do not suggest another cause.
  • #57 What causes low blood pressure (hypotension)? – Health Service Navigator
    https://www.myhsn.co.uk/top-tip/what-causes-low-blood-pressure-hypotension/
    Low blood pressure can occur during pregnancy, especially in the first trimester. This is normal and not a disease. It is the only non serious cause of low blood pressure. […] This is also called postural hypotension. It is a rapid drop in blood pressure when standing up after sitting or lying down. Causes include dehydration, long-term bed rest, pregnancy, certain medical conditions and some medicines. […] Multiple system atrophy with orthostatic hypotension. This rare condition affects the autonomic nervous system […] Autonomic nervous system dysfunction (due to diabetic autonomic neuropathy), can cause low blood pressure.
  • #58 Hypotension (Low Blood Pressure): Causes, Symptoms, and Treatment
    https://patient.info/doctor/hypotension
    Hypotension is therefore a BP that is much lower than usual and which may be causing symptoms such as dizziness or light-headedness. It is often defined as systolic BP less than 90 mm Hg or diastolic BP less than 60 mm Hg. A systolic BP below 100 mm Hg may be more appropriate if the patient normally has hypertension. […] Orthostatic hypotension is defined as a sustained reduction in systolic blood pressure of at least 20 mm Hg or a reduction in diastolic blood pressure of at least 10 mm Hg, usually within the first three minutes of standing or head-up tilt on a tilt table. […] The majority of patients with orthostatic hypotension are asymptomatic or have a few nonspecific symptoms. […] One factor influencing the high prevalence of orthostatic hypotension in the elderly is the frequency of use of antihypertensive medications.
  • #59 Transient hypotension in elderly hypertensive patients: what and how to manage?
    https://www.escardio.org/Journals/E-Journal-of-Cardiology-Practice/Volume-22/transient-hypotension-in-elderly-hypertensive-patients-what-and-how-to-manage
    Some clinical trials register hypotension when it is the primary cause for hospital admission and is featured as the diagnosis in the medical record. […] The difference between symptomatic and asymptomatic hypotension is not clear. […] According to an observational study, orthostatic hypotension occurs in about 3-26% of patients with hypertension, the likelihood increases with age. […] About 20% of patients with essential hypertension and coronary heart disease suffer from postprandial hypotension. […] Clinical trials suggest some generalisations about hypotension caused by hypertension management, but the statistics do not reflect all the cases. […] Transient symptomatic hypotension occurs commonly (up to 70%) both in association with regular medication and in the absence of constant hypertension management.
  • #60 Low Blood Pressure (Hypotension): Causes, Symptoms, & More
    https://www.healthline.com/health/hypotension
    Low blood pressure can make you feel dizzy. […] The medical term for low blood pressure is hypotension. […] Hypotension in adults is defined as a blood pressure reading of lower than 90/60. […] There are several types of hypotension. Low blood pressure is categorized according to when it happens and whats causing it. […] Orthostatic hypotension (also called postural hypotension) is the drop in blood pressure that occurs when you move from sitting or lying down to standing. […] Conditions affecting the autonomic nervous system, such as Parkinsons disease and diabetes, can often lead to orthostatic hypotension. […] Postprandial hypotension is a drop in blood pressure that occurs after eating. […] Neurally mediated hypotension happens when there is an abnormal reflex interaction between the heart and the brain.
  • #61 Hypotension (Low Blood Pressure): Causes, Symptoms, and Treatment
    https://patient.info/doctor/hypotension
    This is often defined as a decline in systolic arterial pressure of 20 mm Hg or a systolic arterial pressure less than 90 mm Hg (with a pre-meal systolic arterial pressure greater than 100 mm Hg), within two hours of consuming a meal. […] Medications used for orthostatic hypotension include midodrine, fludrocortisone, droxidopa, octreotide and pyridostigmine.
  • #62 How Low Can You Go: Is Low Blood Pressure Dangerous?
    https://www.summahealth.org/flourish/entries/2023/02/how-low-can-you-go-is-low-blood-pressure-dangerous
    Neurally mediated hypotension occurs when a person has been standing for a long period of time. This type of hypotension is more common in kids and young adults or when a person has fever or viral sickness. […] Postprandial hypotension, which occurs in older adults, causes dizziness, lightheadedness or fainting after eating. It is thought to be caused by blood pooling in the abdominal area to aid with digestion. […] Other factors that can contribute to low blood pressure include pregnancy, especially during the first 24 weeks, medications like diuretics, beta blockers and antidepressants, sepsis infections, anaphylactic allergic reactions, diabetes, anemia, dehydration, a traumatic injury, heart conditions, nerve problems or a nervous system disorder, heat exhaustion, and thyroid issues. […] People who are physically active or thin may be predisposed to low blood pressure. But for those who experience a sudden drop in blood pressure or have consistent low blood pressure readings that arent normal for them, this could signal a health problem.
  • #63 Transient hypotension in elderly hypertensive patients: what and how to manage?
    https://www.escardio.org/Journals/E-Journal-of-Cardiology-Practice/Volume-22/transient-hypotension-in-elderly-hypertensive-patients-what-and-how-to-manage
    Some clinical trials register hypotension when it is the primary cause for hospital admission and is featured as the diagnosis in the medical record. […] The difference between symptomatic and asymptomatic hypotension is not clear. […] According to an observational study, orthostatic hypotension occurs in about 3-26% of patients with hypertension, the likelihood increases with age. […] About 20% of patients with essential hypertension and coronary heart disease suffer from postprandial hypotension. […] Clinical trials suggest some generalisations about hypotension caused by hypertension management, but the statistics do not reflect all the cases. […] Transient symptomatic hypotension occurs commonly (up to 70%) both in association with regular medication and in the absence of constant hypertension management.
  • #64 Advice for living with low blood pressure | PoTS UK
    https://www.potsuk.org/managingpots/advice-for-living-with-low-blood-pressure/
    People can suddenly develop hypotension when severely unwell eg due to loss of circulating blood volume (haemorrhage), loss of fluid (burns, dehydration) or when the heart doesn’t pump efficiently (heart failure). This situation is called ‘shock’ when the low blood pressure results in inadequate blood supply to the body organs. […] If blood pressure falls as a consequence of eating food, this is called post-prandial hypotension. ‘Prandial’ means related to a meal. This problem is thought to be caused by dilation of blood vessels in the abdominal cavity and increased blood flow to the bowel, which reduces overall blood pressure.
  • #65 Low Blood Pressure (Hypotension): Causes, Symptoms, & More
    https://www.healthline.com/health/hypotension
    Causes of neurally mediated hypotension include standing in one position for a long time and having a strong emotional response, such as shock or fear. […] A severe drop in blood pressure can occur during shock. […] Certain conditions can cause long periods of hypotension that can become dangerous if left untreated. These conditions include pregnancy, impaired circulation caused by a heart attack or heart condition, dehydration, endocrine disorders, autonomic dysfunction, prolonged bed rest, shock, anaphylactic shock, large amounts of blood loss through injury, and blood infections. […] Medications might also cause your blood pressure to become too low. […] If a medication youre taking causes your blood pressure to become too low, your doctor may adjust the dosage or change the medication.
  • #66 How Low Can You Go: Is Low Blood Pressure Dangerous?
    https://www.summahealth.org/flourish/entries/2023/02/how-low-can-you-go-is-low-blood-pressure-dangerous
    Neurally mediated hypotension occurs when a person has been standing for a long period of time. This type of hypotension is more common in kids and young adults or when a person has fever or viral sickness. […] Postprandial hypotension, which occurs in older adults, causes dizziness, lightheadedness or fainting after eating. It is thought to be caused by blood pooling in the abdominal area to aid with digestion. […] Other factors that can contribute to low blood pressure include pregnancy, especially during the first 24 weeks, medications like diuretics, beta blockers and antidepressants, sepsis infections, anaphylactic allergic reactions, diabetes, anemia, dehydration, a traumatic injury, heart conditions, nerve problems or a nervous system disorder, heat exhaustion, and thyroid issues. […] People who are physically active or thin may be predisposed to low blood pressure. But for those who experience a sudden drop in blood pressure or have consistent low blood pressure readings that arent normal for them, this could signal a health problem.
  • #67 The Lowdown on Low Blood Pressure
    https://johnshopkinshealthcare.staywellsolutionsonline.com/Wellness/BloodPressure/56,2949
    After a meal (postprandial). This is common, especially in older adults and people with diabetes. […] Heart problems. These include a very low heart rate, heart attack, and heart failure. […] Dehydration, shock, advanced diabetes, and thyroid problems […] Genetics. Some people have naturally low blood pressure because of their genes. […] Severe infection […] Allergic reaction […] Vasovagal or neurocardiogenic syncope. Low blood pressure can be set off by stressful situations or medicines. […] Severe anemia. This can be caused by low levels of iron, vitamin B-12, or folic acid. […] Endocrine problems. These can affect the hormones that help regulate blood pressure. […] Bleeding. Loss of blood can cause low blood pressure. […] Nervous system diseases. These can also affect the autonomic nervous system.
  • #68 Low blood pressure (hypotension) | Beacon Health System
    https://www.beaconhealthsystem.org/library/diseases-and-conditions/low-blood-pressure-hypotension?content_id=CON-20248754
    Severe allergic reaction, also called anaphylaxis. Symptoms of a severe allergic reaction include a sudden and large drop in blood pressure. […] Lack of nutrients in the diet. Low levels of vitamin B-12, folate and iron can keep the body from making enough red blood cells. A lack of healthy red blood cells is called anemia, and it can lead to low blood pressure. […] Some medicines can cause low blood pressure, including: All blood pressure medicines. These include diuretics, alpha blockers and beta blockers. Examples of diuretics are furosemide (Lasix, Furoscix) and hydrochlorothiazide (Microzide). Alpha blockers include prazosin (Minipress). Some beta blockers are atenolol (Tenormin) and propranolol (Inderal LA, Innopran XL, others). […] Certain medicines have the potential to cause low blood pressure. These include all medicines that treat high blood pressure. […] Parkinson’s disease, diabetes and some heart conditions can lead to low blood pressure. […] Alcohol or illegal drugs. Either of these may raise the risk of low blood pressure.
  • #69 Low Blood Pressure – When Blood Pressure Is Too Low | American Heart Association
    https://www.heart.org/en/health-topics/high-blood-pressure/the-facts-about-high-blood-pressure/low-blood-pressure-when-blood-pressure-is-too-low
    Low blood pressure is usually not harmful unless there are other concerning symptoms. […] There are many possible causes of low blood pressure. […] Low blood pressure can happen with: Prolonged bed rest, Prolonged standing, Depression, Parkinson’s disease, Pregnancy, Dehydration, Certain medications and substances can cause low blood pressure including: Diuretics and other drugs that treat high blood pressure, Heart medications such as beta blockers, Drugs for Parkinson’s disease, Tricyclic antidepressants, Erectile dysfunction drugs, particularly in combination with nitroglycerine, Narcotics. […] Heart conditions that can lead to low blood pressure are: Abnormally low heart rate (bradycardia), Heart valve problems, Heart attack, Heart failure. […] Endocrine problems: Underactive thyroid, Addison’s disease, Low blood sugar, Diabetes.
  • #70 Hypotension – Wikipedia
    https://en.wikipedia.org/wiki/Hypotension
    Low blood pressure can be caused by low blood volume, hormonal changes, pregnancy, widening of blood vessels, medicine side effects, severe dehydration, anemia, vitamin B12 deficiency, anaphylaxis, heart problems or endocrine problems. […] Reduced blood volume, hypovolemia, is the most common cause of hypotension. This can result from hemorrhage; insufficient fluid intake, as in starvation; or excessive fluid losses from diarrhea or vomiting. Hypovolemia can be induced by excessive use of diuretics. Low blood pressure may also be attributed to heat stroke which can be indicated by absence of perspiration, light headedness and dark colored urine. […] Other medications can produce hypotension by different mechanisms. Chronic use of alpha blockers or beta blockers can lead to hypotension. Beta blockers can cause hypotension both by slowing the heart rate and by decreasing the pumping ability of the heart muscle.
  • #71 Causes of low blood pressure (hypotension)
    https://www.medicalnewstoday.com/articles/what-causes-low-blood-pressure
    Low blood pressure may sometimes result from alcohol use or the use of certain medications, such as: diuretics, hypertension medications, heart medications, such as beta-blockers, antidepressants, erectile dysfunction medications, medications for Parkinsons disease. […] Blood pressure naturally fluctuates throughout the day, and it declines with age. Longer lasting low blood pressure may result from a temporary issue, a chronic illness, or an emergency, such as septic shock.
  • #72 Hypotension (Low Blood Pressure) | Cardiology | Mercy Health
    https://www.mercy.com/health-care-services/heart-vascular/conditions/low-blood-pressure
    Medications medications, such as alpha blockers, can lower blood pressure. […] Other serious conditions if you have diabetes or Parkinsons disease, you have a higher risk for developing hypotension. […] Low blood pressure that doesnt show any symptoms does not typically require treatment. For those who do have symptoms, you will be treated based on what the underlying cause of the low blood pressure is. […] If conservative treatments are not successful in increasing your blood pressure, your doctor may need to prescribe medication.
  • #73 Hypotension: Causes, Symptoms, Treatments | Saber Healthcare
    https://www.saberhealth.com/news/blog/causes-of-hypotension
    Medications that are diuretics and treat high blood pressure can cause low blood pressure. Other drugs linked to hypotension include medications for Parkinson’s disease, heart medications that are beta-blockers, alpha-blockers, antidepressants, erectile dysfunction drugs (specifically ones in combination with nitroglycerine), and water pills. […] A severe allergic reaction can cause blood pressure to lower. This usually occurs in people who have severe reactions to medications or animals such as bees. […] When bacteria gets into the bloodstream, it can produce toxins that affect the blood vessels and lowers blood pressure.
  • #74 Hypotension – Wikipedia
    https://en.wikipedia.org/wiki/Hypotension
    Decreased cardiac output despite normal blood volume, due to severe congestive heart failure, large myocardial infarction, heart valve problems, or extremely low heart rate (bradycardia), often produces hypotension and can rapidly progress to cardiogenic shock. Arrhythmias often result in hypotension by this mechanism. […] Excessive vasodilation, or insufficient constriction of the blood vessels (mostly arterioles), causes hypotension. This can be due to decreased sympathetic nervous system output or to increased parasympathetic activity occurring as a consequence of injury to the brain or spinal cord. Dysautonomia, an intrinsic abnormality in autonomic system functioning, can also lead to hypotension. Excessive vasodilation can also result from sepsis, acidosis, or medications, such as nitrate preparations, calcium channel blockers, or AT1 receptor antagonists (Angiotensin II acts on AT1 receptors). Many anesthetic agents and techniques, including spinal anesthesia and most inhalational agents, produce significant vasodilation.
  • #75 Low blood pressure – BHF
    https://www.bhf.org.uk/informationsupport/risk-factors/high-blood-pressure/low-blood-pressure
    Low blood pressure, also known as hypotension, is when your blood pressure is below 90/60mmHg. This does not necessarily mean that there is a problem, but you might need treatment if it is causing symptoms. […] Some of the things that can cause low blood pressure include; Getting older; some people develop low blood pressure as they get older. Medicines including some heart medicines, high blood pressure medicines and water pills (or diuretics). Medicines for Parkinson’s disease and erectile disfunction increase the risk of orthostatic hypotension (this is a type of low blood pressure that happens when you move suddenly). Health conditions; low blood pressure can be a symptom of conditions like Parkinson’s disease, diabetes and other heart conditions. Blood loss; losing a lot of blood from an injury or internal bleeding reduces blood volume leading to a severe drop in blood pressure. Pregnancy; blood vessels can expand in the first stages of pregnancy. This causes blood pressure to drop. After giving birth, blood pressure should go back to how it was before pregnancy. Heart conditions; conditions that affect how your heart works can affect your blood pressure. These include heart failure, some arrhythmias, including bradycardia (or low heart rate). Endocrine disorders; these are conditions that affect hormone producing glands. Some hormones like cortisol help to regulate blood pressure. If you do not make enough of them, your blood pressure can drop. Dehydration; when your body does not have enough water, there is less blood travelling around the body. This can lead to low blood pressure.
  • #76 Hypotension – Wikipedia
    https://en.wikipedia.org/wiki/Hypotension
    Low blood pressure can be caused by low blood volume, hormonal changes, pregnancy, widening of blood vessels, medicine side effects, severe dehydration, anemia, vitamin B12 deficiency, anaphylaxis, heart problems or endocrine problems. […] Reduced blood volume, hypovolemia, is the most common cause of hypotension. This can result from hemorrhage; insufficient fluid intake, as in starvation; or excessive fluid losses from diarrhea or vomiting. Hypovolemia can be induced by excessive use of diuretics. Low blood pressure may also be attributed to heat stroke which can be indicated by absence of perspiration, light headedness and dark colored urine. […] Other medications can produce hypotension by different mechanisms. Chronic use of alpha blockers or beta blockers can lead to hypotension. Beta blockers can cause hypotension both by slowing the heart rate and by decreasing the pumping ability of the heart muscle.
  • #77 Low blood pressure (hypotension) – Symptoms and causes – Mayo Clinic
    https://www.mayoclinic.org/diseases-conditions/low-blood-pressure/symptoms-causes/syc-20355465
    Low blood pressure has various causes. Some health conditions and the use of certain medicines can cause it. Other factors affect blood pressure as well. […] The causes of low blood pressure include dehydration and other serious medical conditions. It’s important to find out what’s causing low blood pressure so that it can be treated, if needed. […] Medical conditions that can cause low blood pressure include: Pregnancy. Changes during pregnancy cause blood vessels to expand fast. The changes may cause blood pressure to drop. Low blood pressure is common in the first 24 weeks of pregnancy. After a person gives birth, blood pressure usually returns to the level that it was before pregnancy. […] Heart and heart valve conditions. A heart attack, heart failure, heart valve disease and a slow heart rate called bradycardia can cause low blood pressure.
  • #78 Low blood pressure (hypotension) | Beacon Health System
    https://www.beaconhealthsystem.org/library/diseases-and-conditions/low-blood-pressure-hypotension?content_id=CON-20248754
    Low blood pressure is a condition in which the force of the blood pushing against the artery walls is too low. It’s also called hypotension. […] The causes of low blood pressure include dehydration and other serious medical conditions. It’s important to find out what’s causing low blood pressure so that it can be treated, if needed. […] Medical conditions that can cause low blood pressure include: Pregnancy. Changes during pregnancy cause blood vessels to expand fast. The changes may cause blood pressure to drop. Low blood pressure is common in the first 24 weeks of pregnancy. After a person gives birth, blood pressure usually returns to the level that it was before pregnancy. […] Heart and heart valve conditions. A heart attack, heart failure, heart valve disease and a slow heart rate called bradycardia can cause low blood pressure.
  • #79 What Is Hypotension?
    https://www.icliniq.com/articles/heart-circulatory-health/low-blood-pressure
    Eating Disorders – People with anorexia nervosa and bulimia have abnormally slow heart rate and irregular heartbeats, which can lead to serious hypotension and heart failure. […] Pregnancy – As the circulatory system expands during pregnancy, the systolic pressure falls 5 to 10 points, and the diastolic pressure falls 10 to 15 points. […] Surgery – Intentionally lowering the blood pressure during surgery results in less blood loss. […] Dehydration – When you lose more water and nutrients than you consume, it can cause dizziness and weakness. […] Septicemia – Septicemia is when an infection enters the bloodstream. This results in a drastic drop in the blood pressure called septic shock, which can be fatal. […] Anaphylaxis – Anaphylaxis is a severe allergic reaction which can be triggered by food, medicines, and insect bites. It causes hives, breathing problems, drop in blood pressure, and swollen throat.
  • #80 Low blood pressure – BHF
    https://www.bhf.org.uk/informationsupport/risk-factors/high-blood-pressure/low-blood-pressure
    Low blood pressure, also known as hypotension, is when your blood pressure is below 90/60mmHg. This does not necessarily mean that there is a problem, but you might need treatment if it is causing symptoms. […] Some of the things that can cause low blood pressure include; Getting older; some people develop low blood pressure as they get older. Medicines including some heart medicines, high blood pressure medicines and water pills (or diuretics). Medicines for Parkinson’s disease and erectile disfunction increase the risk of orthostatic hypotension (this is a type of low blood pressure that happens when you move suddenly). Health conditions; low blood pressure can be a symptom of conditions like Parkinson’s disease, diabetes and other heart conditions. Blood loss; losing a lot of blood from an injury or internal bleeding reduces blood volume leading to a severe drop in blood pressure. Pregnancy; blood vessels can expand in the first stages of pregnancy. This causes blood pressure to drop. After giving birth, blood pressure should go back to how it was before pregnancy. Heart conditions; conditions that affect how your heart works can affect your blood pressure. These include heart failure, some arrhythmias, including bradycardia (or low heart rate). Endocrine disorders; these are conditions that affect hormone producing glands. Some hormones like cortisol help to regulate blood pressure. If you do not make enough of them, your blood pressure can drop. Dehydration; when your body does not have enough water, there is less blood travelling around the body. This can lead to low blood pressure.
  • #81 Hypotension (Low Blood Pressure) | Cardiology | Mercy Health
    https://www.mercy.com/health-care-services/heart-vascular/conditions/low-blood-pressure
    Hypotension is abnormally low blood pressure (lower than 90/60 mm Hg). If your blood pressure gets too low, it can cause dizziness, fainting or death. […] Low blood pressure is not a condition that is usually treated except if it occurs in the elderly or occurs suddenly. In patients over 65, it could indicate the brain and limbs are not receiving adequate blood supply. If your blood pressure drops suddenly, it could deprive the brain of blood, which can lead to lightheadedness or dizziness. […] There are several causes of hypotension including: Prolonged bed rest, Pregnancy, Low or high body temperature, Excessive blood loss, Severe dehydration, Blood infections such as sepsis, Anaphylaxis allergic reaction, Reactions to medication or alcohol. […] Age your risk of low pressure increases as you age. Approximately 10-20% of people older than 65 have postural hypotension.
  • #82 What Causes Hypotension or Low Blood Pressure? – Bansal Hospital
    https://bansalhospital.com/what-causes-hypotension
    Losing blood due to an injury or internal bleeding also results in low blood pressure. […] Severe infection in the bloodstream can cause blood pressure to drop, resulting in septic shock which could be fatal. […] Severe allergic reactions can cause a sudden drop in blood pressure. […] Lack of vitamin B12 or iron can refrain from producing enough RBCs leading to anemia which further leads to hypotension. […] Hypotension is common in people over the age of 65 on standing or after eating food. […] Some medications can cause blood pressure to drop. […] Certain diseases such as Parkinson’s disease, diabetes, and heart conditions may lead to a drop in blood pressure.
  • #83 Transient hypotension in elderly hypertensive patients: what and how to manage?
    https://www.escardio.org/Journals/E-Journal-of-Cardiology-Practice/Volume-22/transient-hypotension-in-elderly-hypertensive-patients-what-and-how-to-manage
    Hypertension treatment in the elderly population should be aimed not only at achieving target pressures, but also at preventing transient hypotensive episodes. […] Some well-known predictors of hypotension are diabetes mellitus, a medical history of stroke, severe heart failure, chronic kidney disease, as well as frailty and intensive blood pressure control. […] The condition of transient hypotension in hypertensive patients is understudied, leaving physicians in need of more practical advice on this subject. […] Hypotension criteria have not yet been clearly defined for the elderly. […] A key limitation of this and similar approaches is that they do not specify the hypotension criteria for the elderly and overlook other serious health issues which impact the patients autoregulation mechanism of blood flow to the vital organs.
  • #84 Low Blood Pressure (Hypotension): Causes & Symptoms
    https://my.clevelandclinic.org/health/diseases/21156-low-blood-pressure-hypotension
    Heart and lung conditions: You can get hypotension when your heart beats too quickly or too slowly, or if your lungs arent working as they should. Advanced heart failure (weak heart muscle) is another cause. […] Prescription medications: Hypotension can happen with medications that treat high blood pressure, heart failure, erectile dysfunction, neurological problems, depression and more. […] Alcohol or recreational drugs: Recreational drugs can lower your blood pressure, as can alcohol (for a short time). […] Pregnancy: Orthostatic hypotension is possible in the first and second trimesters of pregnancy. […] Extreme temperatures: Being too hot or too cold can affect hypotension and make its effects worse.
  • #85 Hypotension (Low Blood Pressure): Causes, Symptoms, Diagnosis, and Management – Ensocure
    https://ensocure.com/hypotension-low-blood-pressure-causes-symptoms-diagnosis-and-management/
    Septic Shock: In severe cases of infection, the bodys response to toxins can cause a sudden and significant drop in blood pressure, leading to shock. […] Alcohol or recreational drugs: Recreational drugs and alcohol can cause hypotension for short periods of time. […] Extreme temperatures: Being too hot or too cold can affect blood pressure depending on your tolerance including your medical condition making the effects of high or low blood pressure worse.
  • #86 Low blood pressure (hypotension): Symptoms, causes, and prevention
    https://www.medicalnewstoday.com/articles/159609
    Blood pressure is low when it is below 90/60 millimeters of mercury (mm Hg). Hypotension can lead to dizziness and faintness. In some cases, it may indicate an underlying health issue. […] Very low blood pressure can be a sign of an allergic reaction or internal bleeding. It can be life threatening if oxygen and nutrients are unable to reach the brain, heart, and other vital organs. […] Blood pressure depends on two main mechanisms: the functioning of the heart and the resistance of the blood vessels. […] Possible causes of hypotension include: Orthostatic or postural hypotension, heart disease, pregnancy, after eating, straining, hormonal problems, neurally mediated hypotension, medications, dietary deficiencies, and eating disorders. […] Severe hypotension can lead to hypotensive shock.
  • #87 Low Blood Pressure – Heart and Blood Vessel Disorders – Merck Manual Consumer Version
    https://www.merckmanuals.com/home/heart-and-blood-vessel-disorders/low-blood-pressure-and-shock/low-blood-pressure
    All organs begin to malfunction if blood pressure becomes sufficiently low and remains low. This condition is called shock. […] Some symptoms occur when the body tries to increase blood pressure that is low. For example, when arterioles constrict, blood flow to the skin, feet, and hands decreases.
  • #88 Hypotension – StatPearls – NCBI Bookshelf
    https://www.ncbi.nlm.nih.gov/books/NBK499961/
    Hypotension can arise from various causes, such as volume depletion, cardiac dysfunction, autonomic failure, or medication effects. […] Blood pressure is primarily determined by cardiac output and total peripheral vascular resistance. Any disease or pathology that affects one or both of these parameters can lead to hypotension. […] Medications can also contribute to hypotension. -blockers and calcium channel blockers are often used to lower heart rate in individuals with tachydysrhythmias like atrial fibrillation and supraventricular tachycardia. […] Acute disease processes that can lead to hypotension are generally categorized into 4 broad groups: distributive shock, cardiogenic shock, hypovolemic shock, and obstructive shock. […] Hypovolemic shock is characterized by a loss of total blood volume, leading to hypotension.
  • #89 Hypotension – StatPearls – NCBI Bookshelf
    https://www.ncbi.nlm.nih.gov/books/NBK499961/
    Obstructive shock arises from conditions that obstruct blood flow, including pulmonary embolism, tension pneumothorax, cardiac tamponade, constrictive pericarditis, and restrictive cardiomyopathies. […] In some cases, hypotensive shock can result from a combination of the conditions mentioned above. An example is Waterhouse-Friderichsen syndrome, which involves adrenal gland failure due to hemorrhage, typically caused by a Neisseria bacterial infection. This condition results in the failure of the adrenal glands to produce key hormones, leading to hypotension and shock.
  • #90 Low blood pressure (hypotension) – Augusta HealthSearchClose SearchSearch IconSearch IconClose Search IconMobile Menu IconMobile Menu Close IconInstagramFacebookTwitterYoutube
    https://www.augustahealth.com/disease/low-blood-pressure-hypotension/
    Low blood pressure (hypotension) can cause dizziness and fainting. […] The causes of low blood pressure can range from dehydration to serious medical disorders. […] Medical conditions that can cause low blood pressure include: Pregnancy, heart problems, endocrine problems, dehydration, blood loss, severe infection (septicemia), severe allergic reaction (anaphylaxis), and lack of nutrients in your diet. […] Some medications can cause low blood pressure, including water pills (diuretics), alpha blockers, beta blockers, drugs for Parkinson’s disease, certain types of antidepressants, and drugs for erectile dysfunction. […] Doctors often break down low blood pressure (hypotension) into categories, depending on the causes and other factors. […] A sudden fall in blood pressure can be dangerous.
  • #91 Hypotension/ Low Blood Pressure | MedPark Hospital
    https://www.medparkhospital.com/en-US/disease-and-treatment/hypotension
    This sudden drop in blood pressure occurs when you stand up after lying down or a sitting position. […] This kind of hypotension usually occurs around a couple hours after eating. […] This kind of hypotension occurs after standing for a long period of time. […] Damage to the nervous system causes a drop of blood pressure. […] The risk of this condition may be increased with some factors including: Age especially in adults older than 65, Use of medications, such as medications for high blood pressure, Some diseases including heart problems and endocrine problems such as diabetes. […] Hypotension may lead to light accidents to serious medical problems. […] The doctor may review your medical problems before conducting some physical exams and measuring blood pressure. […] Treatment for hypotension depends on its cause, type and severity.
  • #92 Low Blood Pressure: 11 Symptoms & Signs, Treatment, How to Increase It
    https://www.emedicinehealth.com/how_do_you_fix_low_blood_pressure_now/article_em.htm
    Low blood pressure (hypotension) is a condition in which the force of blood pumping through the arteries is lower than normal. […] Causes of low blood pressure include: […] Some medications […] Decreased blood volume, which can be caused by: […] Prolonged bed rest […] Pregnancy […] Heart problems […] Endocrine problems […] Autonomic nervous system disorders, such as Parkinsons disease […] Severe infection (septic shock) […] Severe allergic reaction (anaphylaxis) […] Neurally mediated hypotension, a disorder that causes blood pressure to drop after standing for long periods […] Nutritional deficiencies, including low levels of vitamins B-12 and folic acid […] Older age.
  • #93 Hypotension – What You Need to Know
    https://www.drugs.com/cg/hypotension.html
    Hypotension is blood pressure (BP) that is lower than it should be. Hypotension may be mild, serious, or life-threatening. […] What causes or increases my risk for hypotension? Anemia, blood loss, or hemodialysis […] A nervous system, heart, or adrenal disorder […] Dehydration from not drinking enough liquids, vomiting, diarrhea, or severe burns […] Some medicines, such as those used to treat high blood pressure, heart conditions, pain, depression, or cancer […] Increasing age, low body weight, or pregnancy […] Drug or alcohol use […] Being bedridden for a long period of time […] A medical condition such as diabetes or sepsis (a blood infection). […] Many times, hypotension is a symptom of another condition. You may need any of the following tests to find the cause of your hypotension: A blood or urine sample may be checked for anemia or other conditions causing your hypotension.