Utrata słuchu
Etiologia i przyczyny

Utrata słuchu, dotykająca obecnie około 430 milionów osób na świecie, może mieć charakter przewodzeniowy, odbiorczy (czuciowo-nerwowy) lub mieszany, zależnie od lokalizacji uszkodzenia w układzie słuchowym. Najczęstszą przyczyną u dorosłych jest presbycusis, związana z degeneracją komórek rzęsatych ślimaka, włókien nerwowych oraz zmianami naczyniowymi ucha wewnętrznego, szczególnie u osób powyżej 75 roku życia. Drugą istotną przyczyną jest ekspozycja na hałas powyżej 85 dB, prowadząca do trwałego uszkodzenia komórek rzęsatych. Inne etiologie obejmują infekcje ucha, otosklerozę, chorobę Ménière’a, nerwiaka przedsionkowego, autoimmunologiczne zapalenie ucha wewnętrznego, a także czynniki metaboliczne i naczyniowe, takie jak cukrzyca, nadciśnienie tętnicze i niedokrwistość. Ponadto, ponad 200 leków, w tym aminoglikozydy, chemioterapeutyki i diuretyki pętlowe, wykazuje działanie ototoksyczne, co wymaga monitorowania słuchu podczas terapii. Urazy mechaniczne, ciała obce, perlak oraz czynniki genetyczne również stanowią istotne przyczyny utraty słuchu, z dziedziczeniem autosomalnym recesywnym dominującym lub sprzężonym z chromosomem X w około 50% przypadków prelingwalnej głuchoty.

Utrata słuchu – Etiologia, przyczyny i czynniki wywołujące

Utrata słuchu to powszechny problem zdrowotny, który może wystąpić w każdym wieku i znacząco utrudniać komunikację werbalną. Szacuje się, że do 2050 roku około 2,5 miliarda ludzi będzie doświadczać pewnego stopnia utraty słuchu, a ponad 700 milionów będzie wymagać rehabilitacji słuchowej1. Problem ten dotyka obecnie około 430 milionów osób na całym świecie, w tym 34 miliony dzieci2. Przyczyny utraty słuchu są liczne i zróżnicowane, a ich znajomość jest kluczowa dla właściwej diagnostyki i leczenia.

Typy utraty słuchu i ich najczęstsze przyczyny

Utratę słuchu można sklasyfikować na trzy główne typy, zależnie od miejsca uszkodzenia w układzie słuchowym12:

  • Utrata słuchu przewodzeniowa – występuje, gdy dźwięk nie może być prawidłowo przewodzony przez ucho zewnętrzne lub środkowe do ucha wewnętrznego12
  • Utrata słuchu odbiorczа (czuciowo-nerwowa) – wynika z uszkodzenia ucha wewnętrznego, nerwu słuchowego lub ośrodków słuchowych w mózgu12
  • Utrata słuchu mieszana – stanowi kombinację utraty słuchu przewodzeniowej i odbiorczej12

Utrata słuchu związana z wiekiem (presbycusis)

Starzenie się jest najczęstszą przyczyną utraty słuchu u dorosłych12. Presbycusis, czyli związana z wiekiem utrata słuchu, dotyka ponad połowę osób w Stanach Zjednoczonych powyżej 75 roku życia1. Z wiekiem dochodzi do naturalnej degeneracji struktur ucha wewnętrznego, co objawia się stopniowym pogarszaniem słuchu, szczególnie w zakresie wysokich częstotliwości1.

Presbycusis jest zwykle spowodowany przez12:

  • Utratę komórek rzęsatych w ślimaku ucha wewnętrznego
  • Degenerację włókien nerwowych przenoszących sygnały dźwiękowe do mózgu
  • Zmiany naczyniowe w uchu wewnętrznym
  • Kombinację powyższych czynników wraz z długotrwałą ekspozycją na hałas w ciągu życia

Utrata słuchu spowodowana hałasem

Ekspozycja na hałas jest drugą najczęstszą przyczyną utraty słuchu12. Szacuje się, że około jedna czwarta dorosłych cierpi na utratę słuchu związaną z hałasem1. Uszkodzenie słuchu może być wywołane przez12:

  • Jednorazową ekspozycję na bardzo głośne dźwięki (np. wystrzał z broni, fajerwerki, wybuch)
  • Długotrwałą ekspozycję na hałas przekraczający 85 decybeli (np. hałas przemysłowy, głośna muzyka)

Hałas może powodować uszkodzenie delikatnych komórek rzęsatych w ślimaku, co prowadzi do trwałego upośledzenia słuchu12. Osoby pracujące w głośnych środowiskach, takie jak pracownicy budowlani, muzycy, rolnicy, górnicy i personel wojskowy, są szczególnie narażone na ten typ utraty słuchu1.

Nagromadzenie woskowiny usznej

Woskowina uszna (cerumen) stanowi najczęstszą przyczynę odwracalnej utraty słuchu, szczególnie wśród osób starszych12. Z czasem woskowina może gromadzić się i utwardzać, blokując przewód słuchowy i uniemożliwiając prawidłowe przewodzenie fal dźwiękowych1. Usunięcie woskowiny zwykle przywraca prawidłowy słuch1.

Infekcje ucha i stany zapalne

Infekcje ucha są częstą przyczyną przejściowej utraty słuchu, szczególnie u dzieci1. Mogą prowadzić do12:

Przewlekłe lub nawracające infekcje ucha środkowego mogą prowadzić do bliznowacenia, gromadzenia się płynu lub uszkodzenia strukturalnego, zwiększając ryzyko zarówno tymczasowej, jak i trwałej utraty słuchu1.

Choroby i stany medyczne prowadzące do utraty słuchu

Otoskleroza

Otoskleroza to choroba ucha środkowego charakteryzująca się nieprawidłowym wzrostem tkanki kostnej wokół strzemiączka, jednej z kosteczek słuchowych12. Prowadzi to do unieruchomienia strzemiączka i zaburzenia przenoszenia dźwięków do ucha wewnętrznego1. Przypuszczalne przyczyny otosklerozy obejmują procesy zapalne (autoimmunologiczne, wirus odry) oraz czynniki genetyczne, metaboliczne i hormonalne1.

Choroba Ménière’a

Choroba Ménière’a to zaburzenie ucha wewnętrznego charakteryzujące się zawrotami głowy (vertigo), szumem usznym (tinnitus) oraz fluktuacjami słuchu12. Prowadzi do czuciowo-nerwowej utraty słuchu, która początkowo może się nasilać i ustępować, a następnie staje się trwała1. Choroba ta wynika ze zwiększonej ilości płynu w układzie przedsionkowym ucha wewnętrznego1.

Nerwiak przedsionkowy (nerwiak akustyczny)

Nerwiak przedsionkowy to łagodny guz rozwijający się na nerwie przedsionkowo-ślimakowym (VIII nerw czaszkowy)12. Powoduje jednostronną utratę słuchu, często z towarzyszącym szumem usznym i zawrotami głowy1. Jest to rzadka przyczyna utraty słuchu, ale wymaga dokładnej diagnostyki, ponieważ guz ten może uciskać na pień mózgu1.

Autoimmunologiczna utrata słuchu

Autoimmunologiczna utrata słuchu występuje, gdy układ odpornościowy organizmu atakuje ucho wewnętrzne1. Może wystąpić w przebiegu chorób układowych, takich jak toczeń rumieniowaty układowy czy reumatoidalne zapalenie stawów12. Autoimmunologiczna choroba ucha wewnętrznego (AIED) charakteryzuje się szybko postępującą, obustronną utratą słuchu, często z towarzyszącym szumem usznym lub zawrotami głowy1.

Choroby infekcyjne

Wiele chorób infekcyjnych może prowadzić do utraty słuchu12:

  • Zapalenie opon mózgowych – może powodować trwałe uszkodzenie ślimaka lub nerwu słuchowego
  • Świnka, odra, różyczka – mogą uszkodzić ucho wewnętrzne, szczególnie u dzieci
  • Cytomegalowirus (CMV) – najczęstsza infekcyjna przyczyna wrodzonej utraty słuchu
  • Kiła – może powodować czuciowo-nerwową utratę słuchu, jeśli nie jest leczona

Choroby naczyniowe i metaboliczne

Choroby układu sercowo-naczyniowego i metaboliczne mogą przyczyniać się do utraty słuchu poprzez zakłócenie dopływu krwi do delikatnych struktur ucha wewnętrznego12:

  • Cukrzyca – wysokie stężenie glukozy we krwi może uszkadzać małe naczynia krwionośne w uchu wewnętrznym, zakłócając jego zdolność do efektywnego przetwarzania dźwięku12
  • Nadciśnienie tętnicze – podwyższone ciśnienie krwi zmniejsza przepływ krwi do delikatnych struktur układu słuchowego1
  • Choroby serca – mogą wpływać na krążenie krwi w uchu wewnętrznym1
  • Niedokrwistość z niedoboru żelaza – została powiązana z utratą słuchu w badaniach naukowych12

Czynniki zewnętrzne powodujące utratę słuchu

Leki ototoksyczne

Ponad 200 leków i substancji chemicznych może mieć działanie ototoksyczne, uszkadzając ucho wewnętrzne i prowadząc do utraty słuchu12. Do najczęściej spotykanych leków ototoksycznych należą12:

  • Antybiotyki aminoglikozydowe (np. gentamycyna, streptomycyna, amikacyna)
  • Leki przeciwnowotworowe (chemioterapeutyki, zwłaszcza związki platyny)
  • Duże dawki aspiryny i innych niesteroidowych leków przeciwzapalnych
  • Diuretyki pętlowe (np. furosemid)
  • Niektóre leki przeciwmalaryczne
  • Sildenafil (Viagra) i niektóre inne leki stosowane w zaburzeniach erekcji

Ototoksyczność jest zwykle zależna od dawki i częściej występuje u pacjentów z niewydolnością serca i przewlekłą chorobą nerek1.

Urazy głowy i ucha

Urazy mechaniczne mogą powodować utratę słuchu na różne sposoby12:

  • Złamania kości skroniowej – mogą uszkodzić ucho wewnętrzne i nerw słuchowy
  • Perforacja błony bębenkowej – może być spowodowana przez głośne wybuchy, nagłe zmiany ciśnienia, infekcje lub wprowadzenie ciała obcego do ucha
  • Uraz akustyczny – jednorazowa ekspozycja na ekstremalnie głośne dźwięki
  • Urazowe uszkodzenie mózgu – może wpływać na ośrodki słuchowe w mózgu

Ciała obce i guzy

Różne obiekty mogą blokować przewód słuchowy lub uszkadzać struktury ucha12:

  • Ciała obce w przewodzie słuchowym (szczególnie częste u dzieci)
  • Perlak (cholesteatoma) – nieprawidłowy wzrost tkanki skórnej w uchu środkowym, często związany z przewlekłymi infekcjami ucha środkowego
  • Guzy łagodne blokujące ucho zewnętrzne lub środkowe
  • Wyrośla kostne w przewodzie słuchowym

Perlak może prowadzić do przewodzeniowej utraty słuchu przez erozję kosteczek słuchowych, co występuje u około 90% pacjentów z tym schorzeniem1.

Genetyczne i wrodzone przyczyny utraty słuchu

Genetyczne uwarunkowania utraty słuchu

Utrata słuchu może być dziedziczna, przekazywana przez rodziców dzieciom12. Około 50% przypadków prelingwalnej głuchoty ma podłoże genetyczne1. Dziedziczenie może odbywać się w sposób1:

  • Autosomalny recesywny (około 75-80% wszystkich przypadków dziedzicznej utraty słuchu)
  • Autosomalny dominujący (20-25% przypadków)
  • Sprzężony z chromosomem X (1-2% przypadków)
  • Mitochondrialny (mniej niż 1% przypadków)

Szacuje się, że 35-55% utraty słuchu związanej z wiekiem można przypisać czynnikom genetycznym1.

Wrodzone wady ucha

Wrodzona utrata słuchu może wynikać z12:

  • Malformacji ucha wewnętrznego – najczęstsza przyczyna dziedzicznej utraty słuchu
  • Wad rozwojowych ucha zewnętrznego i środkowego (np. mikrocja, atrezja)
  • Infekcji wewnątrzmacicznych (np. cytomegalowirus, różyczka, toksoplazmoza, kiła)
  • Zespołów genetycznych (np. zespół Downa, zespół Treachera Collinsa, zespół Waardenburga)

Perinatalne czynniki ryzyka

Czynniki okołoporodowe mogą prowadzić do utraty słuchu u noworodków12:

  • Niedotlenienie okołoporodowe (brak tlenu podczas porodu)
  • Wcześniactwo i niska masa urodzeniowa
  • Hiperbilirubinemia (wysoki poziom bilirubiny prowadzący do żółtaczki)
  • Zakażenia w okresie noworodkowym

Nagła utrata słuchu

Nagła idiopatyczna utrata słuchu

Nagła czuciowo-nerwowa utrata słuchu (SSNHL) charakteryzuje się ostrą utratą słuchu, prawie zawsze jednostronną, która występuje w ciągu 72 godzin12. Mimo że SSNHL może wynikać z różnych zidentyfikowanych przyczyn, większość przypadków jest idiopatyczna, co oznacza, że dokładna przyczyna nie jest znana1.

Postulowane przyczyny idiopatycznego SSNHL obejmują12:

  • Wirusowe zapalenie ślimaka (najczęściej podejrzewany jest wirus HSV-1)
  • Zdarzenia mikronaczyniowe związane z nadkrzepliwością krwi
  • Zaburzenia autoimmunologiczne
  • Przerwanie dopływu krwi (niedokrwienie) do ucha wewnętrznego
  • Pęknięcie błony w uchu wewnętrznym

Wirusy są uważane za najczęstszą przyczynę nagłej utraty słuchu1. Większość lekarzy zgadza się, że leczenie jest najbardziej skuteczne, gdy zostanie rozpoczęte jak najwcześniej po wystąpieniu utraty słuchu1.

Inne przyczyny nagłej utraty słuchu

Nagła utrata słuchu może być również spowodowana12:

  • Urazem głowy – zwłaszcza złamaniem kości skroniowej
  • Ostrymi zmianami ciśnienia – np. podczas nurkowania lub latania
  • Ototoksycznymi lekami – niektóre antybiotyki i chemioterapeutyki
  • Ostrymi infekcjami – zwłaszcza z wysoką gorączką
  • Zespołem Cogana – autoimmunologiczna reakcja atakująca ucho wewnętrzne i powierzchnię oka
  • Chorobami naczyniowymi – zapalenie naczyń krwionośnych

Zapobieganie utracie słuchu

Wiele przyczyn prowadzących do utraty słuchu można uniknąć dzięki strategiom zdrowia publicznego i interwencjom klinicznym wdrażanym w ciągu całego życia1. U dzieci prawie 60% przypadków utraty słuchu wynika z przyczyn, których można uniknąć poprzez wdrożenie odpowiednich środków zapobiegawczych1.

Najważniejsze strategie zapobiegania utracie słuchu obejmują12:

  • Ochrona przed hałasem – używanie ochronników słuchu w głośnych środowiskach, ograniczanie czasu ekspozycji na głośne dźwięki
  • Szczepienia – przeciwko chorobom zakaźnym, które mogą powodować utratę słuchu (odra, świnka, różyczka, zapalenie opon mózgowych)
  • Badania przesiewowe słuchu – wczesne wykrywanie i leczenie problemów ze słuchem
  • Odpowiednie stosowanie leków – unikanie niepotrzebnego stosowania leków ototoksycznych, monitorowanie słuchu podczas ich przyjmowania
  • Kontrola chorób przewlekłych – właściwe leczenie cukrzycy, nadciśnienia i innych schorzeń wpływających na słuch

Podsumowanie przyczyn utraty słuchu

Utrata słuchu wynika z różnorodnych przyczyn, od naturalnego starzenia się i ekspozycji na hałas, po choroby, infekcje, urazy i czynniki genetyczne1. Zrozumienie etiologii utraty słuchu jest kluczowe dla właściwej diagnostyki, leczenia i zapobiegania1.

Niektóre rodzaje utraty słuchu, jak presbycusis czy uszkodzenia związane z hałasem, są często nieodwracalne, podczas gdy inne, jak te spowodowane woszkowiną czy infekcjami, można skutecznie leczyć1. Wczesna identyfikacja i interwencja są kluczowe dla zminimalizowania wpływu utraty słuchu na jakość życia pacjenta1.

W wielu przypadkach utrata słuchu może być wskaźnikiem innych problemów zdrowotnych, takich jak choroby sercowo-naczyniowe, cukrzyca czy zaburzenia autoimmunologiczne, co podkreśla znaczenie kompleksowej oceny medycznej12.

Kolejne rozdziały

Zapraszamy do dalszego czytania naszego leksykonu.

Wybierz kolejny rozdział z menu poniżej, aby otworzyć nową podstronę kompedium wiedzy i uzyskać szczegółowe informację o leku, substancji lub chorobie.

  1. 13.04.2026
  2. www.leksykon.com.pl

Materiały źródłowe

  • #1
    https://www.who.int/news-room/fact-sheets/detail/deafness-and-hearing-loss
    By 2050, nearly 2.5 billion people are projected to have some degree of hearing loss, and more than 700 million will require hearing rehabilitation. […] Over 5% of the worlds population or 430 million people require rehabilitation to address their disabling hearing loss (including 34 million children). […] Disabling hearing loss refers to hearing loss greater than 35 decibels (dB) in the better hearing ear. […] A person who is not able to hear as well as someone with normal hearing hearing thresholds of 20 dB or better in both ears is said to have hearing loss. […] Although these factors can be encountered at different periods across the life span, individuals are most susceptible to their effects during critical periods in life. […] Genetic factors including hereditary and non-hereditary hearing loss
  • #1 Types and Causes of Hearing Loss | Starkey
    https://www.starkey.com/hearing-loss/types-and-causes
    There are three types of hearing loss sensorineural hearing loss, conductive hearing loss, and mixed hearing loss. […] Sensorineural hearing loss is the most common type of hearing loss. It occurs when the inner ear nerves and hair cells are damaged perhaps due to age, noise damage or something else. […] Conductive hearing loss is typically the result of obstructions in the outer or middle ear perhaps due to fluid, tumors, earwax or even ear formation. […] Hearing loss is caused by many factors, most frequently from natural aging or exposure to loud noise. The most common causes of hearing loss are: Aging, Noise exposure, Head trauma, Virus or disease, Genetics, Ototoxicity. […] Things that can cause sensorineural hearing loss are: Aging, Injury, Excessive noise exposure, Viral infections (such as measles or mumps), Shingles, Ototoxic drugs (medications that damage hearing), Meningitis, Diabetes, Stroke, High fever or elevated body temperature, Mnire’s disease (a disorder of the inner ear that can affect hearing and balance), Acoustic tumors, Heredity, Obesity, Smoking, Hypertension.
  • #1 Hearing Loss: Types, Symptoms, Causes & Treatment
    https://my.clevelandclinic.org/health/diseases/17673-hearing-loss
    Hearing loss can affect everyone from babies to people in their 60s and 70s. Many things may cause hearing loss, but exposure to loud noise is the most common reason people have the condition. […] Most often, hearing loss cant be reversed. […] Many things can cause hearing loss. For example, short-term or sudden exposure to very loud noise like attending a loud concert can affect your hearing. […] Conductive hearing loss causes include: Earwax thats built up in your ear. Fluid in your middle ear from colds or allergies. Middle ear infection (otitis media). Swimmers ear (otitis externa). Eustachian tube issues that traps fluid in your middle ear. Ruptured eardrum. Ear tumors. Something stuck in your ear. For example, your child, faced with a side dish of peas, may decide to put one in their ear. Congenital conditions (conditions present at birth) that affect how babies middle or outer ears are formed.
  • #1 Sensorineural Hearing Loss: Symptoms, Causes & Treatment
    https://my.clevelandclinic.org/health/diseases/sensorineural-hearing-loss
    Sensorineural hearing loss (SNHL) occurs when sound cant reach your inner ear. Causes include infection, trauma and loud noise exposure. […] Sensorineural hearing loss happens because of damage to your inner ear. Specifically, it occurs when the tiny hair cells in your cochlea or vestibulocochlear nerve get damaged or destroyed. […] Some people are born with SNHL because of a lack of oxygen or other complications during fetal development. Others develop it later in life due to illnesses, trauma, exposure to loud noises or typical aging. […] Diseases and conditions that raise your risk for SNHL include: Acoustic neuroma. This is a noncancerous tumor that affects your inner ear. Aging. Simply growing older increases your risk for hearing loss, as the tiny hair cells in your inner ear deteriorate over time. Mnires disease. This chronic ear disorder causes symptoms like vertigo and tinnitus (ringing in your ears). Ototoxicity. This is inner ear damage that results from taking certain medications. Systemic conditions. Some conditions like diabetes and meningitis can disrupt blood flow to your inner ear or inflame your vestibulocochlear nerve. Traumatic brain injury. Brain trauma can cause fractures, blood flow disruption and increased intercranial pressure all of which can lead to SNHL. […] In some cases, healthcare providers cant identify an exact cause. When this happens, they call it idiopathic SNHL.
  • #1 Hearing Loss: Types, Symptoms, Causes & Treatment
    https://my.clevelandclinic.org/health/diseases/17673-hearing-loss
    Sensorineural hearing loss causes include: Aging. Illnesses like coronary artery disease (heart disease), high blood pressure (hypertension), strokes or diabetes. Ototoxicity. Certain genetic (inherited) conditions. Being hit in the head. Noise-induced hearing loss. Long-term exposure to loud noise, like working in a very noisy environment like factories and construction sites. Congenital infections like cytomegalovirus (CMV). […] Mixed hearing loss in a combination of conductive and sensorineural hearing loss. That means it affects your outer and middle ear as well as your inner ear. […] Having hearing loss can make you feel disconnected from the world around you. You may become frustrated, irritable or angry. People with severe hearing loss can become anxious or depressed. […] If you have a hearing test, your audiologist will share test results and explain what they mean.
  • #1 Hearing loss – Symptoms and causes – Mayo Clinic
    https://www.mayoclinic.org/diseases-conditions/hearing-loss/symptoms-causes/syc-20373072
    Hearing loss that comes on little by little as you age, also known as presbycusis, is common. More than half the people in the United States older than age 75 have some age-related hearing loss. […] Aging and being around loud noises both can cause hearing loss. Other factors, such as too much earwax, can lower how well ears work for a time. […] Causes of hearing loss include: Damage to the inner ear. Aging and loud noise can cause wear and tear on the hairs or nerve cells in the cochlea that send sound signals to the brain. Damaged or missing hairs or nerve cells don’t send electrical signals well. This causes hearing loss. […] Higher pitched tones may seem muffled. It may be hard to pick out words against background noise. […] Buildup of earwax. Over time, earwax can block the ear canal and keep sound waves from passing through. Earwax removal can help restore hearing.
  • #1 The Differential Diagnosis of Hearing Loss
    https://pmc.ncbi.nlm.nih.gov/articles/PMC3139416/
    Medications and bacterial and viral toxins can reach the inner ear by way of the membrane of the round window, the cerebrospinal fluid, or the bloodstream and irreversibly damage the hair cells. […] Sudden sensorineural hearing loss is a syndrome involving sudden hearing impairment that is not due solely to a problem in the inner ear. […] Presbycusis is bilateral sensorineural hearing loss of multifactorial origin, beginning between age 50 and age 60 and characterized by impaired hearing of high frequencies. […] Noise-related hearing loss accounts for 40% of all cases of recognized occupational disease and is thus the most common of all occupational diseases. […] This category includes all types of hearing impairment due to diseases affecting the cochlear nerve.
  • #1 Hearing loss – prevention, signs, diagnosis and treatment | healthdirect
    https://www.healthdirect.gov.au/hearing-loss
    Sensorineural hearing loss is often permanent. […] Presbycusis is usually caused by a loss of hair cells in your cochlea. […] Sudden sensorineural hearing loss can be caused by many things. These include infection, stroke, head injury, medicines or other health conditions. […] Sudden conductive hearing loss can also have many causes, such as wax, ear infection, ear syringing or injury. […] Most types of hearing loss are permanent, so its important to prevent hearing loss before it occurs. If you do have damage to your hearing, you can still try to stop it from getting worse. […] The best way to protect your hearing is to limit your exposure to loud noises.
  • #1 Causes of hearing loss – Hearing Link Services
    https://www.hearinglink.org/your-hearing/causes-hearing-loss/
    There are many causes of hearing loss and a number of ways of explaining or classifying them. […] A straightforward way of categorising causes of hearing loss is based on the type of hearing loss and how it relates to which part of auditory or hearing system has become damaged or is in some way abnormal. […] Conditions affecting the outer and/or middle ear cause conductive hearing loss which is often treatable and may, therefore, be temporary. […] Disorders of the inner ear or central auditory system cause sensorineural hearing loss which is usually not medically or surgically treatable and is, therefore, generally permanent. […] The most common cause of hearing loss is age-related hearing loss called presbyacusis. […] Exposure to excessive noise is generally considered to be the second most common cause of hearing loss.
  • #1 Hearing loss: common causes in adults and how nurses can help
    https://www.myamericannurse.com/common-causes-of-hearing-loss-in-adults/
    Otosclerosis occurs as a result of abnormal ossicles remodeling, which prevents sound waves from vibrating the bones normally. […] Sensorineural hearing loss (SNHL) occurs when the mechanical sound that passes through the middle ear cant be processed in the inner ear. […] Age is the most significant factor associated with hearing loss in adults. […] Noise-induced hearing loss, which affects one in four adults, is the second most common form of SNHL. […] Mnires disease results from increased fluid in the vestibular system of the inner ear, which is responsible for balance. […] Sudden sensorineural hearing loss (SSNHL) may affect only 5 to 20 per 100,000 adults annually, according to a clinical practice guideline from AAO-HNSF, but its an otologic emergency that requires an urgent referral to an otolaryngologist. […] An acoustic neuroma (vestibular schwannoma) is a slow-growing benign tumor of the myelin-producing Schwann cells of the eighth cranial nerve.
  • #1 Hearing loss – Symptoms and causes – Mayo Clinic
    https://www.mayoclinic.org/diseases-conditions/hearing-loss/symptoms-causes/syc-20373072
    Factors that damage or lead to loss of the hairs and nerve cells in the inner ear include: Aging. The inner ear breaks down over time. […] Loud noise. Being around loud sounds can damage the cells of the inner ear. Damage can happen by being around loud noises over time. Or the damage can come from a short blast of noise, such as from a gunshot. […] Some medicines. These include the antibiotic gentamicin, sildenafil (Viagra) and certain medicines used to treat cancer, which can damage the inner ear. Very high doses of aspirin, other pain relievers, antimalarial drugs or loop diuretics can cause short-term effects on hearing. These include ringing in the ears, also known as tinnitus, or hearing loss. […] Some illnesses. Illnesses such as meningitis that cause high fever can harm the cochlea.
  • #1 Hearing loss – prevention, signs, diagnosis and treatment | healthdirect
    https://www.healthdirect.gov.au/hearing-loss
    Hearing loss can be caused by a problem in any part of your hearing pathway. This can be from your outer and middle ear through to your inner ear and the nerve to your brain. […] Some people are born with low hearing. Other people develop hearing loss later because of a health condition. The most common causes are ageing and being exposed to loud noise. […] People who work in loud environments are at higher risk. This includes construction workers, musicians, farmers, miners and military personnel. Listening to loud music with headphones or at clubs or gyms also puts you at risk. […] Most people find their hearing gets worse as they get older. Hearing loss can also be genetic. […] Conductive hearing loss is more common in children and Aboriginal and/or Torres Strait Islander people. It can sometimes be treated.
  • #1 Hearing Loss – Ear, Nose, and Throat Disorders – Merck Manual Consumer Version
    https://www.merckmanuals.com/home/ear-nose-and-throat-disorders/hearing-loss-and-deafness/hearing-loss
    Hearing loss has many causes. Different parts of the hearing pathway can be affected, and loss is classified as conductive, sensorineural, or mixed, depending on the part of the pathway that is affected. […] The most common causes overall are earwax (cerumen) accumulation, noise, aging, and ear infections (particularly among children and young adults). […] Earwax accumulation is the most common cause of treatable hearing loss, especially among older adults. […] Noise can cause sudden or gradual sensorineural hearing loss. […] Aging, together with noise exposure and genetic factors, is a common risk factor for hearing loss. […] Ear infections are a common cause of temporary mild to moderate hearing loss (mainly in children). […] Less common causes include systemic rheumatic and other autoimmune disorders, congenital disorders, medications that damage the ear (ototoxic medications), injuries, and tumors. […] The causes in each group are listed in approximate order of frequency.
  • #1 Pictures: Top Causes of Hearing Loss
    https://www.webmd.com/healthy-aging/ss/slideshow-causes
    Noncancerous growths, including bone tumors, scar tissue, and cysts, can block your ear canal and cause hearing loss. […] Firecrackers, gunshots, and other explosions create powerful sound waves that may rupture your eardrum or damage your inner ear. This can cause sudden hearing loss, either temporary or permanent. […] Ringing in your ears after a concert? Thats called tinnitus. It’s not the same as hearing loss, but they’re related. […] Using these devices can cause temporary or permanent hearing loss. […] Earwax protects your ear canal against dirt and bacteria. But it can build up, harden, and affect your hearing. This is the most common cause of treatable hearing loss. […] Many illnesses common in children and young adults can affect hearing. In ear infections, your middle ear may fill with fluid, causing temporary hearing loss. […] Some children are born with hearing loss. This is called congenital hearing loss. It often runs in families. […] Hearing weakens as you grow older. Damage from noise and illnesses may contribute. But it can happen even if you protect your ears all your life.
  • #1 Causes of hearing loss​: types and prevention
    https://www.amplifon.com/uk/recognising-hearing-loss/causes
    Certain medical conditions increase the risk of hearing loss. Examples include: […] High blood sugar levels can harm the small blood vessels in the inner ear, disrupting its ability to process sound effectively. Over time, this damage may lead to permanent hearing loss. […] Elevated blood pressure reduces blood flow to the delicate structures of the auditory system, which rely on a steady supply of oxygen and nutrients to function properly. […] This rare condition occurs when the immune system mistakenly attacks the inner ear, causing inflammation and progressive hearing loss, often accompanied by tinnitus or dizziness. […] Persistent or repeated middle ear infections can lead to scarring, fluid build-up, or structural damage, increasing the risk of both temporary and permanent hearing impairments.
  • #1 The Differential Diagnosis of Hearing Loss
    https://pmc.ncbi.nlm.nih.gov/articles/PMC3139416/
    The presumed causes of otosclerosis include inflammation (autoimmune processes, measles virus) and genetic, metabolic, and hormonal factors. […] Permanent conductive hearing loss is generally caused by chronic bacteria infection of the middle ear, affecting either the mucosa or the bone. […] Sensory hearing loss is due, by definition, to dysfunction of the organ of Corti. […] More than 300 different congenital syndromes are associated with hearing impairment. […] The treatment of hearing impairment in childhood is interdisciplinary, with the early provision of hearing aids and the active promotion of hearing and speech acquisition in pediatric audiology centers. […] Acute hearing impairment resulting from damage to the sensory cells of the inner ear, or from impaired inner ear homeostasis, can be classified according to etiology as traumatic, toxic, infectious, or idiopathic.
  • #1 Differential Diagnosis and Treatment of Hearing Loss | AAFP
    https://www.aafp.org/pubs/afp/issues/2003/0915/p1125.html
    Hearing loss is a common problem that can occur at any age and makes verbal communication difficult. […] Leading causes of conductive hearing loss include cerumen impaction, otitis media, and otosclerosis. Leading causes of sensorineural hearing loss include inherited disorders, noise exposure, and presbycusis. […] Conductive hearing loss occurs when sound conduction is impeded through the external ear, the middle ear, or both. Sensorineural hearing loss occurs when there is a problem within the cochlea or the neural pathway to the auditory cortex. Mixed hearing loss is concomitant conductive and sensorineural loss. […] Complete occlusion of the ear canal by cerumen is a frequent cause of conductive hearing loss. […] Otitis media is the most common cause of conductive hearing loss in children.
  • #1 Causes of Hearing Loss in Adults
    https://www.asha.org/public/hearing/causes-of-hearing-loss-in-adults/?srsltid=AfmBOorInV_x-B3H3rIbde5uaf48YxLbiqjyeE25xBnHSV_3S539R1AH
    There are many causes of hearing loss in adults. […] You can inherit hearing loss from your family. It is also common for hearing loss to happen as you get older. […] Some causes of hearing loss in adults include: […] Otosclerosis. This is a middle ear disease. It makes it harder for the tiny bones in the middle ear to move. It causes a conductive hearing loss. […] Mnire’s disease. This is an inner ear problem. The cause of Mnire’s disease is not known. […] A person with this disease will often have sensorineural hearing loss. […] Autoimmune inner ear disease. An autoimmune disorder is one where your body attacks itself. This type of hearing loss happens fast. […] Ototoxic medications. There are some medicines that can cause hearing loss. […] Very loud noise. Loud noise can cause permanent hearing loss. […] Acoustic neuroma. This is an example of a tumor that causes hearing loss. […] Physical head injury. A traumatic brain injury (TBI), hole in the eardrum, and damage to the middle ear can cause hearing loss. […] Presbycusis. This is a sensorineural hearing loss that happens as you get older.
  • #1 Severe Hearing Loss: Why It Happens & Complications
    https://www.webmd.com/a-to-z-guides/hearing-loss-causes
    Perforated eardrum. An ear infection, loud sounds, trauma, or intense pressure in the ear from flying in an airplane or scuba diving can damage the eardrum, leaving a hole that may or may not heal. Depending on the size of the hole, there may be mild or moderate hearing loss. […] Cholesteatoma. This is a collection of skin that you can get in the middle ear when the eardrum collapses or when skin grows through a hole in the eardrum. Cholesteatomas grow over time and can lead to hearing loss by destroying the middle ear bones or, rarely, the inner ear. […] Illnesses or infections. Measles, mumps, syphilis, and meningitis are just a few of the conditions that can cause hearing loss. […] Menieres disease. Symptoms of this inner ear disorder include: Dizziness, Hearing loss that comes and goes, Ringing in the ear, Fullness in the ear. Hearing loss in Menieres disease usually gets worse but only involves one ear.
  • #1 Hearing Loss on One Side: Causes and Treatments
    https://www.healthline.com/health/hearing-loss-on-one-side
    Hearing loss on one side can occur due to wax or fluid buildup or an underlying condition such as labyrinthitis, Menieres disease, acoustic neuroma, and more. […] There are many possible causes for hearing loss on one side. Ear and head conditions that can cause unilateral hearing loss include: injury to the ear or head, exposure to loud noises, buildup of wax or blockage in the ear, ear infection, tumors such as acoustic neuromas. […] In addition to head or ear injuries or the presence of a foreign body in the ear, the following medical conditions are examples of causes of hearing loss on one side: Acoustic neuroma, Eardrum rupture, Labyrinthitis, Menieres disease, Otitis media with effusion, Infection, Traumatic brain injury (TBI). […] Possible causes of unilateral hearing loss, or loss of hearing on one side of the ear, include a buildup of wax or fluid, an ear infection, or an injury to the head or ear. […] Acoustic neuroma, Menieres disease, labyrinthitis, and otitis media with effusion are examples of medical conditions that can lead to hearing loss on one side.
  • #1 Causes of hearing loss – Hearing Link Services
    https://www.hearinglink.org/your-hearing/causes-hearing-loss/
    Cardiovascular disease is a significant component in age-related hearing loss. […] There are many infectious diseases, bacterial and viral, which can cause sensorineural hearing loss. […] Some medications are known to cause sensorineural hearing loss and these are called ototoxic drugs. […] Diabetes should be much better known as a cause of sensorineural hearing loss. […] Menieres disorder (syndrome) is the most common condition involving both hearing loss and balance problems. […] Hereditary or genetic hearing loss does not always means a person is born with it. […] Age-related hearing loss isn’t just due to deterioration in the cochlea of the inner ear. […] Although very unusual, a tumour can develop between the inner ear and the brainstem. […] Although the subject of much ongoing research, it is already clear that there is an association between untreated/unassisted hearing loss and cognitive decline and dementia.
  • #1 Sudden onset hearing loss Causes, investigations and management
    https://www.racgp.org.au/afp/2013/september/sudden-onset-hearing-loss
    There is debate as to the role of known cardiovascular risk factors and their relevance in the pathogenesis of SNHL. […] Infections can cause SSNHL. Syphilis is an established cause and early treatment may lead to a better outcome. […] SSNHL has been associated with systemic lupus erythematosis and other autoimmune diseases.
  • #1 For Causes of Hearing Loss Concerning – Audiologist – Tulsa.
    https://www.thehearingdr.com/services/causes-of-hearing-loss/
    Diabetes: Usually results in hearing loss due to changes in the auditory nerve endings. […] Cardiovascular Disease: Untreated high blood pressure, very high cholesterol and triglyceride levels in the blood, poor overall cardiovascular health (blockages), hypercoagulability, or polycythemia can cause insufficient blood flow to the inner ear causing damage and resulting in hearing loss. […] Thyroid Disorders, Kidney Disease, Glaucoma, and Sickle Cell Disease are also associated with high incidences do hearing loss. […] Conductive hearing loss is caused by any condition or disease that impedes the conveyance of sound in its mechanical form through the middle ear cavity to the inner ear. […] The second type of hearing loss is called sensorineural hearing loss. Sensorineural hearing loss results from inner ear or auditory nerve dysfunction.
  • #1 Causes of hearing loss
    https://www.healthyhearing.com/help/hearing-loss/causes
    Numerous drugs and medications are linked to hearing loss, known as ototoxic drugs. […] Common health conditions that are linked to hearing loss include heart disease and diabetes, and autoimmune disorders, including Hashimoto’s thyroiditis. […] Several studies published in the last few years have strongly linked sleep apnea to hearing loss. […] Iron-deficient anemia (IDA) is strongly linked to hearing loss. […] This common childhood disease is known for causing painful swelling of the salivary glands on both sides of the face but in extreme cases, the mumps can also cause swelling of the membranes that surround the brain and hearing loss. […] Researchers think stress impacts blood circulation to the ears. […] While the coronavirus is far more likely to cause breathing problems, it can occasionally infect the auditory system, studies show, leading to temporary hearing loss and tinnitus from COVID.
  • #1 Sensorineural hearing loss (SNHL) causes
    https://www.healthyhearing.com/report/50276-Common-causes-of-sensorineural-hearing-loss
    Damage to your inner ear also can be caused by a blow to the head or exposure to extremely loud noise, such as an explosion. […] Examples of common tumors that can affect hearing include acoustic neuroma and cholesteatoma, an abnormal skin growth in the middle ear. […] More than 200 medications and chemicals are ototoxic, or damaging to your hearing health. […] Congenital sensorineural hearing loss happens during pregnancy. It’s far more rare. Some causes include prematurity, maternal diabetes, lack of oxygen during birth, genetics, and infectious diseases passed from the mother to child in the womb, such as rubella. […] Most of the time, acquired sensorineural hearing loss occurs gradually. However, in rare cases, people can develop sudden sensorineural hearing loss, leading to sudden deafness in one ear.
  • #1 Hearing Loss in Adults: Differential Diagnosis and Treatment | AAFP
    https://www.aafp.org/pubs/afp/issues/2019/0715/p98.html
    Hundreds of medications are associated with ototoxicity. Physicians should ask about current and past use of these medications, and when current use is necessary, assure that protocols are in place to minimize risk. Ototoxicity is typically dose-dependent and more likely to occur in patients with heart failure and chronic kidney disease.
  • #1 Hearing loss – Symptoms and causes – Mayo Clinic
    https://www.mayoclinic.org/diseases-conditions/hearing-loss/symptoms-causes/syc-20373072
    Ear infection or unusual bone growths or tumors. In the outer or middle ear, any of these can cause hearing loss. […] Ruptured eardrum, also known as tympanic membrane perforation. Loud blasts of noise, sudden changes in pressure, poking an eardrum with an object and infection can cause the eardrum to burst. […] Dr. Matthew Carlson says temporary hearing loss can happen when your ears are plugged with wax or fluid behind the ear drum, for example. Nerve-related hearing loss is usually permanent. […] There are thousands of different causes of sensorineural hearing loss. The most common is probably just being over the age of 50 or having a history of loud noise exposure. […] Dr. Carlson says just about all types of sensorineural hearing loss have to do with the loss of the function of hair cells in your inner ear.
  • #1 Severe Hearing Loss: Why It Happens & Complications
    https://www.webmd.com/a-to-z-guides/hearing-loss-causes
    Tumors. Cancer or benign tumors can cause severe hearing loss. This includes acoustic neuroma, paraganglioma, and meningioma. People who have one might also have numbness in their face or weakness and ringing in their ear. […] An object stuck in the ear. When somethings in your ear that shouldnt be, it can block hearing. Earwax can sometimes build up and harden, which can make it hard to hear. […] Malformed ear. Some people are born with poorly formed ears. […] Trauma. Injuries like a skull fracture or a punctured eardrum can cause severe hearing loss. […] Medications. Some types of drugs — including some antibiotics, large amounts of aspirin, chemotherapy drugs (carboplatin, cisplatin), and Vicodin (in large amounts) — can cause hearing loss. Sometimes hearing will return once you stop taking the drug. In most cases, the hearing loss is permanent.
  • #1 Differential Diagnosis and Treatment of Hearing Loss | AAFP
    https://www.aafp.org/pubs/afp/issues/2003/0915/p1125.html
    Cholesteatomas are locally destructive and characterized by chronic drainage. Conductive hearing loss caused by ossicular erosion is present in 90 percent of patients with cholesteatomas. […] Noise trauma is the most common preventable cause of sensorineural hearing loss. […] A less common cause of hearing loss is ototoxin exposure, typically from diuretics, salicylates, aminoglycosides, and many chemotherapeutic agents. […] Autoimmune hearing loss has been diagnosed with increasing frequency since the 1980s. […] Temporal bone fractures can cause unilateral sensorineural and conductive hearing loss. […] Meniere’s disease is another cause of sensorineural hearing loss.
  • #1 Causes of hearing loss – Wikipedia
    https://en.wikipedia.org/wiki/Causes_of_hearing_loss
    Hearing loss can be inherited. Around 75-80% of all these cases are inherited by recessive genes, 20-25% are inherited by dominant genes, 1-2% are inherited by X-linked patterns, and fewer than 1% are inherited by mitochondrial inheritance. […] Fetal alcohol spectrum disorders are reported to cause hearing loss in up to 64% of infants born to alcoholic mothers, from the ototoxic effect on the developing fetus plus malnutrition during pregnancy from the excess alcohol intake. […] Some medications may reversibly affect hearing. These medications are considered ototoxic. […] Hearing loss due to chemicals starts in the high-frequency range and is irreversible. It damages the cochlea with lesions and degrades central portions of the auditory system. […] There can be damage either to the ear, whether the external or middle ear, to the cochlea, or to the brain centres that process the aural information conveyed by the ears.
  • #1 Clinical aspects of hereditary hearing loss | Genetics in Medicine
    https://www.nature.com/articles/gim200764
    Hearing loss is an etiologically diverse condition with many disease-related complications and major clinical, social, and quality of life implications. […] The aim of this review is to provide a comprehensive framework underlying the causes of hearing impairment and to detail the clinical management for patients with hereditary hearing loss. […] In the investigation of hearing loss, genetic forms must be distinguished from acquired (nongenetic) causes. […] More than 50% of all prelingual deafness cases are hereditary in nature, with the remaining 40% to 50% of cases secondary to environmental factors such as infectious or iatrogenic causes. […] The majority of genetic hearing loss diagnosed in infancy and early childhood is autosomal recessive in inheritance and nonsyndromic. […] Genetic hearing loss may be inherited in an autosomal dominant, autosomal recessive, or X-linked Mendelian manner, or through the maternal lineage by mitochondrial inheritance.
  • #1 Causes of Hearing Loss – Sound Relief Hearing Center
    https://www.soundrelief.com/causes-hearing-loss/
    Estimates indicate that anywhere between 35 and 55 percent of age-related hearing loss can be attributed to genetics. This means that if your parents or other older relatives have exhibited signs of excessive age-related hearing loss, you are statistically more likely to experience it yourself. […] As you might assume, loud noises can cause lasting damage to your ears and to your ability to hear. […] Occupational Hearing Loss (OHL) is one of the most common reasons individuals experience sustained hearing loss. […] Medications taken for other medical issues can damage the ears and cause diminished hearing, which is often reversible but sometimes (unfortunately) permanent. […] Many diseases, infections, and viruses can cause hearing loss. Examples include meningitis, mumps, scarlet fever, measles, autoimmune diseases, blood vessel diseases, and ear infections.
  • #1 Deafness – a range of causes | Better Health Channel
    https://www.betterhealth.vic.gov.au/health/conditionsandtreatments/deafness-a-range-of-causes
    Hearing loss can range from mild to profound and has many different causes, including injury, disease, genetic defects and the ageing process. […] Hearing loss at birth is known as congenital hearing loss, while hearing loss that occurs after birth is called acquired hearing loss. […] The most common cause of acquired hearing loss is noise, which accounts for over one quarter of people affected by hearing loss. […] Some of the many causes of hearing loss include: hereditary disorders, some types of hearing loss are hereditary, which means parents pass on affected genes to their children. In most cases, hereditary hearing loss is caused by malformations of the inner ear. […] Genetic mutations may happen: for example, at the moment of conception when the fathers sperm joins with the mothers egg. Some of the many genetic disorders that can cause hearing loss include osteogenesis imperfecta, Trisomy 13 (Patau syndrome) and Treacher Collins syndrome.
  • #1 Hearing Impairment: Practice Essentials, Anatomy, Pathophysiology
    https://emedicine.medscape.com/article/994159-overview
    Perinatal causes are responsible for 5-15% of hearing losses. A history of prematurity, low birth weight, anoxia or low Apgar scores (see the Apgar Score calculator), hyperbilirubinemia, or sepsis should prompt an evaluation of hearing because these conditions may also result in SNHL. […] About 10-20% of hearing losses are due to postnatal causes. Childhood infections, such as meningitis or mumps, may result in SNHL. Treatment with ototoxic medications, such as aminoglycosides or furosemide, also can lead to SNHL. […] In about 20-30% of deaf children, no certain cause can be identified. Their hearing losses likely result from a maldevelopment of the ear or the neurologic system. Such an event may have been a developmental accident or the result of an undiagnosed infection or exposure to a teratogenic agent. However, many are likely due to an undiagnosed genetic defect that may represent a new mutation or a genetic recessive trait. Psychogenic hearing loss is also known to occur. [24]
  • #1 Sudden sensorineural hearing loss in adults – UpToDate
    https://www.uptodate.com/contents/sudden-sensorineural-hearing-loss-in-adults
    Sudden sensorineural hearing loss (SSNHL) is characterized by an acute sensorineural hearing loss, nearly always unilateral, that occurs within a 72-hour period. Most cases are idiopathic, and the prognosis for hearing recovery depends largely upon the severity of the hearing loss. […] Although SSNHL can result from a variety of identifiable causes (eg, neoplastic, infectious, autoimmune, neurologic, otologic, metabolic, or vascular diseases; ototoxic drugs; trauma), the majority of cases are idiopathic, with many proposed etiologies and risk factors (table 1). Postulated causes of idiopathic SSNHL include viral cochleitis, microvascular events due to a hypercoagulable state, and autoimmune disorders. Herpes simplex type 1 virus (HSV-1) may be an etiologic factor in SSNHL, analogous to its possible role in Bell’s palsy. In addition, epidemiologic data demonstrate a higher risk of SSNHL among siblings compared with the general population, suggesting a possible heritable component. […] Compared with patients with unilateral SSNHL, those with bilateral disease are more likely to have an autoimmune etiology, comorbid diabetes mellitus, and comorbid hypertension.
  • #1 Sudden onset hearing loss Causes, investigations and management
    https://www.racgp.org.au/afp/2013/september/sudden-onset-hearing-loss
    Sudden onset hearing loss (SOHL) has a number of causes, ranging from the simple and reversible to the profound and permanent. […] There are a number of causes of SOHL, both conductive and sensorineural. […] In the majority of cases of sudden sensorineural hearing loss (SSNHL), no cause is identified and it is considered idiopathic SSNHL. […] Although there are a number of causes of SSHNL, most cases are idiopathic, and no cause can be identified in 85-90% of cases. […] Many of the causes of CHL, such as wax, foreign bodies or otitis externa, can usually be managed in the general practice setting, with only complicated cases requiring referral. […] Idiopathic SSNHL management generates much debate. […] The mainstay of treatment is early initiation of oral steroids (prednisolone at a dose of 1 mg/kg/day to a maximum of 60 mg/day) unless contraindicated.
  • #1 Sudden Hearing Loss Treatment NYC | Mount Sinai – New York
    https://www.mountsinai.org/locations/ear-institute/conditions/sudden-hearing-loss
    Viruses are believed to be the most common cause of sudden hearing loss. […] Sudden hearing loss can be an indication of an underlying medical condition, such as Meniere’s disease (a disruption of the fluid balance in the inner ear), autoimmune inner ear disease (when the body’s immune system mistakenly attacks the tissues of your inner ear), or a tumor of the hearing nerve (acoustic neuroma). […] Most doctors agree that treatments are most effective when started as early as possible after the onset of the loss.
  • #1 Sudden Hearing Loss – Ear, Nose, and Throat Disorders – Merck Manual Consumer Version
    https://www.merckmanuals.com/home/ear-nose-and-throat-disorders/hearing-loss-and-deafness/sudden-hearing-loss
    Sudden hearing loss is moderate to severe hearing loss that develops over about 72 hours or is noticed on awakening. […] Causes of sudden hearing loss fall into 3 general categories: An unknown cause, an obvious explanatory event (such as a brain infection or head injury), and an underlying disorder. […] In most people, no cause can be found for their sudden hearing loss. However, doctors have several theories. Possible causes include viral infections (particularly infections with herpes simplex virus), an attack on the inner ear or its nerves by the body’s immune system (autoimmune reaction), and blockage of the small blood vessels of the inner ear or the blood vessels of its nerves. […] Such causes include head injury, severe pressure change, medications that damage the inner ear (ototoxic medications), and infections.
  • #1
    https://www.who.int/news-room/fact-sheets/detail/deafness-and-hearing-loss
    Intrauterine infections such as rubella and cytomegalovirus infection. […] Birth asphyxia (a lack of oxygen at the time of birth) […] Chronic ear infections (chronic suppurative otitis media) […] Age-related sensorineural hearing loss […] Loud noise/loud sounds exposure […] Many of the causes that lead to hearing loss can be avoided through public health strategies and clinical interventions implemented across the life course. […] In children, nearly 60% of hearing loss is due to avoidable causes that can be prevented through implementation of public health measures. […] Most common causes of hearing loss in adults, such as exposure to loud sounds and ototoxic medicines, are preventable.
  • #1 Causes of hearing loss – Wikipedia
    https://en.wikipedia.org/wiki/Causes_of_hearing_loss
    Causes of hearing loss include ageing, genetics, perinatal problems, loud sounds, and diseases. For some kinds of hearing loss the cause may be classified as of unknown cause. […] Noise exposure is the cause of approximately half of all cases of hearing loss, causing some degree of problems in 5% of the population globally. […] Hearing loss due to noise may be temporary, called a 'temporary threshold shift’, a reduced sensitivity to sound over a wide frequency range resulting from exposure to a brief but very loud noise like a gunshot, firecracker, jet engine, jackhammer, etc. or exposure to loud sound over a few hours such as during a pop concert or nightclub session. […] Noise-induced hearing loss (NIHL) typically manifests as elevated hearing thresholds (i.e. less sensitivity or muting) between 3000 and 6000 Hz, centred at 4000 Hz.
  • #1 Etiology of hearing loss in adults – UpToDate
    https://www.uptodate.com/contents/etiology-of-hearing-loss-in-adults
    Etiology of hearing loss in adults […] The causes of hearing loss are reviewed here, along with brief discussions of the management of certain conditions. […] OUTER EAR CAUSES: Congenital, Infection, Trauma, Tumor, Systemic disease, Dermatologic, Cerumen. […] MIDDLE EAR CAUSES: Congenital, Eustachian tube dysfunction, Infection, Tumors, Otosclerosis, Tympanic membrane perforation, Middle ear barotrauma, Vascular. […] INNER EAR CAUSES: Congenital or hereditary, Presbycusis, Infection, Meniere disease, Noise exposure, Inner ear barotrauma, Trauma, Tumors, Endocrine/systemic/metabolic, Autoimmune hearing loss, Iatrogenic, Ototoxic substances, Neurogenic.
  • #1 Hearing Loss: Types, Symptoms, Causes & Treatment
    https://my.clevelandclinic.org/health/diseases/17673-hearing-loss
    Treatments are different depending on the type of hearing loss you have. […] Cochlear implant surgery may affect your sense of balance or affect residual hearing, which is hearing you have despite having severe or profound hearing loss. Rarely, cochlear implant surgery causes nerve damage or cerebrospinal leaks. […] There are some types of hearing loss you cant prevent. For example, many people develop hearing loss as they grow older. That said, noise is the most common cause of hearing loss. […] Some hearing loss is temporary, like hearing loss that happens because you have a cold, swimmers ear, or theres something stuck in your ear. Sensorineural and age-related hearing loss is usually permanent, but hearing aids or cochlear implants may restore most of your hearing. […] The difference is someone with hearing loss still hears sounds well enough to take part in conversations. They can improve their hearing ability through hearing aids or other treatments. Someone whos deaf can hear very little or nothing at all. Hearing aids and devices dont help. […] Hearing loss is one such medical condition, but the level of hearing loss factors into whether its a disability under federal law.
  • #1 Hearing Loss in Adults: Differential Diagnosis and Treatment | AAFP
    https://www.aafp.org/pubs/afp/issues/2019/0715/p98.html
    More than 30 million U.S. adults have hearing loss. This condition is underrecognized, and hearing aids and other hearing enhancement technologies are underused. Hearing loss is categorized as conductive, sensorineural, or mixed. Age-related sensorineural hearing loss (i.e., presbycusis) is the most common type in adults. […] Presbycusis, or age-related hearing loss, is the most common type of sensorineural loss. The cause of presbycusis is multifactorial, with contributions from genetic factors, aging, oxidative stress, cochlear vascular changes, and environmental factors (e.g., noise, tobacco, alcohol, ototoxins). […] Hearing loss is associated with adverse effects, even after adjusting for confounding factors. Difficulty hearing speech adversely affects social engagement and partner relationships. Hearing loss is also associated with decreased quality of life, dementia, depression, debility, delirium, falls, and mortality.
  • #2
    https://www.who.int/news-room/fact-sheets/detail/deafness-and-hearing-loss
    By 2050, nearly 2.5 billion people are projected to have some degree of hearing loss, and more than 700 million will require hearing rehabilitation. […] Over 5% of the worlds population or 430 million people require rehabilitation to address their disabling hearing loss (including 34 million children). […] Disabling hearing loss refers to hearing loss greater than 35 decibels (dB) in the better hearing ear. […] A person who is not able to hear as well as someone with normal hearing hearing thresholds of 20 dB or better in both ears is said to have hearing loss. […] Although these factors can be encountered at different periods across the life span, individuals are most susceptible to their effects during critical periods in life. […] Genetic factors including hereditary and non-hereditary hearing loss
  • #2 Hearing Loss – StatPearls – NCBI Bookshelf
    https://www.ncbi.nlm.nih.gov/books/NBK542323/
    Hearing loss can be conductive, sensorineural, or mixed. […] The most common causes include abnormal formation of the auricle or helix, cerumen impaction, ear canal foreign bodies, otitis externa, dysfunction or fixation of the ossicular chain, and middle ear effusion. […] Sensorineural hearing loss (SNHL) usually results from problematic transmission of the stimuli at or after the cochlea. […] There are multiple reasons for hearing impairment. […] In the pediatric population, genetic causes are the most common, accounting for more than 50% of hearing loss. […] Prenatal causes can also relate to hearing loss in infants. […] Age-related hearing loss involves a gradual reduction of the hearing capacity of the individual and poor speech discrimination scores, most noticeable initially in noisy environments, which is likely related to age-related degeneration of the cochlea in various sites, particularly the hair cells.
  • #2 Conductive Hearing Loss
    https://www.asha.org/public/hearing/conductive-hearing-loss/?srsltid=AfmBOoqKccG3ma8zmwENjLjog6EWR9eYhfueNN4eCN35ni6iL7wFhNh7
    A conductive hearing loss happens when sounds cannot get through the outer and middle ear. […] This type of hearing loss can be caused by the following: Fluid in your middle ear from colds or allergies. Ear infection, or otitis media. Otitis is a term used to mean ear infection, and media means middle. Poor Eustachian tube function. The Eustachian tube connects your middle ear and your nose. Fluid in the middle ear can drain out through this tube. Fluid can stay in the middle ear if the tube does not work correctly. A hole in your eardrum. Benign tumors. These tumors are not cancer but can block the outer or middle ear. Earwax, or cerumen, stuck in your ear canal. Infection in the ear canal, called external otitis. You may hear this called swimmers ear. An object stuck in your outer ear. An example might be if your child put a pebble in his ear when playing outside. A problem with how the outer or middle ear is formed. Some people are born without an outer ear. Some may have a deformed ear canal or have a problem with the bones in their middle ear.
  • #2 Types and Causes of Hearing Loss | Starkey
    https://www.starkey.com/hearing-loss/types-and-causes
    There are three types of hearing loss sensorineural hearing loss, conductive hearing loss, and mixed hearing loss. […] Sensorineural hearing loss is the most common type of hearing loss. It occurs when the inner ear nerves and hair cells are damaged perhaps due to age, noise damage or something else. […] Conductive hearing loss is typically the result of obstructions in the outer or middle ear perhaps due to fluid, tumors, earwax or even ear formation. […] Hearing loss is caused by many factors, most frequently from natural aging or exposure to loud noise. The most common causes of hearing loss are: Aging, Noise exposure, Head trauma, Virus or disease, Genetics, Ototoxicity. […] Things that can cause sensorineural hearing loss are: Aging, Injury, Excessive noise exposure, Viral infections (such as measles or mumps), Shingles, Ototoxic drugs (medications that damage hearing), Meningitis, Diabetes, Stroke, High fever or elevated body temperature, Mnire’s disease (a disorder of the inner ear that can affect hearing and balance), Acoustic tumors, Heredity, Obesity, Smoking, Hypertension.
  • #2 Mixed Hearing Loss: Signs, Causes & Treatment | Baptist Health
    https://www.baptisthealth.com/care-services/conditions-treatments/mixed-hearing-loss
    Mixed hearing loss can result from a variety of factors. The most common cause of hearing loss is age. […] Other mixed hearing loss causes include: Infections. Ear infections can cause inflammation and fluid buildup in the middle ear, leading to conductive hearing loss. Infections can also damage the inner ear. […] Trauma. Injuries to the ear or head, including skull fractures. […] Age-related hearing loss. As you get older, it is common for your hearing to gradually become worse. This is called presbycusis and it often causes sensorineural hearing loss. […] Noise exposure. Hearing loss can happen if you are around loud sounds for a long time, or if you hear a loud noise suddenly. This can damage the tiny hair cells inside the ear that help us hear.
  • #2 Causes of hearing loss
    https://www.healthyhearing.com/help/hearing-loss/causes
    Hearing loss has a number of different causes, from aging to genetic conditions to noise exposure. Determining the cause is an important step in finding the right treatment. […] Most cases of hearing loss are caused by noise exposure and aging. But a number of other conditions are linked to hearing loss, too. In some cases, no cause can be found. […] The most common type of hearing loss is known as age-related hearing loss, or presbycusis. This means the gradual loss of hearing that occurs over time. […] Noise-induced hearing loss is caused by exposure to loud noise, usually anything above about 85 decibels. […] Some types of hearing loss are inherited, meaning they are passed down by a parent via genetics. […] Numerous illnesses and conditions can cause or contribute to hearing loss.
  • #2 Causes of hearing loss – Hearing Link Services
    https://www.hearinglink.org/your-hearing/causes-hearing-loss/
    Cardiovascular disease is a significant component in age-related hearing loss. […] There are many infectious diseases, bacterial and viral, which can cause sensorineural hearing loss. […] Some medications are known to cause sensorineural hearing loss and these are called ototoxic drugs. […] Diabetes should be much better known as a cause of sensorineural hearing loss. […] Menieres disorder (syndrome) is the most common condition involving both hearing loss and balance problems. […] Hereditary or genetic hearing loss does not always means a person is born with it. […] Age-related hearing loss isn’t just due to deterioration in the cochlea of the inner ear. […] Although very unusual, a tumour can develop between the inner ear and the brainstem. […] Although the subject of much ongoing research, it is already clear that there is an association between untreated/unassisted hearing loss and cognitive decline and dementia.
  • #2 What Causes Noise-Induced Hearing Loss | Loud Noises Can Cause Hearing Loss | CDC
    https://www.cdc.gov/hearing-loss/causes/index.html
    Noise is a significant source of hearing loss, but you can protect your hearing. […] An important first step is to understand how noise causes hearing loss. […] Repeated exposure to loud sounds can lead to hearing loss. Loud sounds (noise) can lead to noise-induced hearing loss. […] Noise-induced hearing loss can be caused by: A single loud sound (like firecrackers) near the ear. Repeated exposures to loud sounds, over time. […] The louder the sound, the shorter the amount of time it takes for hearing loss to occur. The longer the exposure, the greater the risk for hearing loss. […] There are other factors that can increase your risk for noise-induced hearing loss. These include: Family history of hearing loss not associated with noise exposure. Long-standing (chronic) conditions, such as diabetes and high blood pressure. Injuries to the ear. Exposure to organic liquid chemicals, such as toluene. Taking certain medications.
  • #2 Causes of hearing loss – Wikipedia
    https://en.wikipedia.org/wiki/Causes_of_hearing_loss
    Causes of hearing loss include ageing, genetics, perinatal problems, loud sounds, and diseases. For some kinds of hearing loss the cause may be classified as of unknown cause. […] Noise exposure is the cause of approximately half of all cases of hearing loss, causing some degree of problems in 5% of the population globally. […] Hearing loss due to noise may be temporary, called a 'temporary threshold shift’, a reduced sensitivity to sound over a wide frequency range resulting from exposure to a brief but very loud noise like a gunshot, firecracker, jet engine, jackhammer, etc. or exposure to loud sound over a few hours such as during a pop concert or nightclub session. […] Noise-induced hearing loss (NIHL) typically manifests as elevated hearing thresholds (i.e. less sensitivity or muting) between 3000 and 6000 Hz, centred at 4000 Hz.
  • #2 Hearing Loss in Adults: Differential Diagnosis and Treatment | AAFP
    https://www.aafp.org/pubs/afp/issues/2019/0715/p98.html
    Hearing loss is grouped into conductive, sensorineural, or mixed types. Conductive problems involve the tympanic membrane and middle ear, and interfere with transmitting sound and converting it to mechanical vibrations. Sensorineural problems affect the conversion of mechanical sound to neuroelectric signals in the inner ear or auditory nerve. […] Sudden sensorineural hearing loss refers to hearing loss of at least 30 dB involving three consecutive frequencies occurring over less than 72 hours for which no apparent cause can be found on initial history and examination. […] Occlusion of the external auditory canal by cerumen results in conductive hearing loss, and removal is curative. Cerumen can be removed by irrigation, manual extraction, cerumenolytic agents, or a combination of these methods.
  • #2 Causes and Signs of Hearing Loss in Fort Worth, TX
    https://fortworthent.net/audiology-hearing-loss/causes-signs-hearing-loss/
    Ear infections: Fluid can build up in the middle ear and cause temporary loss of hearing, but recurring infections can lead to more serious and long-term hearing problems. […] Medications: Some drugs and chemicals can trigger hearing side effects. Hearing can be affected by: Certain antibiotics, Aspirin, Some chemotherapy drugs, Malaria medications, Loop diuretics, Several erectile dysfunction medicines. […] Illness: Otosclerosis (bone disease that affects the middle ear) and Mnires disease (an inner ear disorder) can cause hearing loss. The blood supply to the ears can be affected by other diseases such as diabetes, high blood pressure, and heart disease. High fever can also damage the cochlea. […] Ear wax: Build up can block the canals and prevent sound wave conduction. […] Trauma: A punctured eardrum or fractured skull can cause serious damage to the ears and cause hearing loss.
  • #2 6 lesser-known and better-known causes of hearing loss
    https://www.medstarhealth.org/blog/hearing-loss-causes
    Another cause of hearing loss that most people don’t know about is otosclerosis. […] Otosclerosis is a condition in which one of the ossicles, or the tiny bones in the middle ear, gets stuck and isn’t able to vibrate normally. […] Unfortunately, numerous factors can cause or contribute to hearing loss. […] One fairly common cause of hearing loss is exposure to chemicals or medications that can damage the ear. […] Untreated ear conditions like ear infections can also lead to hearing loss without proper treatment. […] Hearing loss is linked to several fairly common conditions, including diabetes; high blood pressure, also known as hypertension; and high cholesterol, also known as hyperlipidemia. […] All of these conditions can cause microvascular disease, which is a problem with the tiny blood vessels that supply blood to the inner ear.
  • #2 Azthena logo with the word Azthena
    https://www.news-medical.net/health/Causes-of-hearing-loss.aspx
    This occurs when there is an abnormal growth of bone in the middle ear. […] Sometimes hearing loss may run in families. This is more commonly of the sensorineural type. […] Viral infections like Mumps, measles and Rubella (German measles) may also cause hearing loss especially in children. […] Menieres disease leads to a sensorineural hearing loss along with vertigo and tinnitus or ringing of the ears and feeling of pressure within the ears. […] A tumor of the auditory nerve that is non-cancerous may also lead to a sensorineural hearing loss. […] Multiple sclerosis and stroke are other causes of neurological hearing loss. […] Some drugs like those used in cancer and antibiotics like Aminoglycoside (gentamicin, Amikacin, Streptomycin etc.) may lead to nerve damage within the ear and hearing loss.
  • #2 Causes of hearing loss​: types and prevention
    https://www.amplifon.com/uk/recognising-hearing-loss/causes
    Perforated eardrum: tears or holes in the eardrum caused by infections, injuries, or sudden pressure changes. […] Foreign objects or malformations: structural issues or blockages in the ear canal. […] Mixed hearing loss is a combination of sensorineural and conductive factors. For example, an individual might experience inner ear damage while also having a middle ear infection. […] Unilateral hearing loss can significantly impact daily life, making it harder to localise sounds or follow conversations in noisy environments. Common causes include: […] Acoustic Neuroma: a benign tumour on the auditory nerve. […] Mnires Disease: a disorder affecting the inner ear, often associated with vertigo and tinnitus. […] Trauma: Injuries to the head or ear can cause damage to one ear. […] Viral Infections: sudden hearing loss in one ear is frequently linked to viral illnesses affecting the auditory system.
  • #2 Causes and Signs of Hearing Loss in Fort Worth, TX
    https://fortworthent.net/audiology-hearing-loss/causes-signs-hearing-loss/
    Heredity: Genetics can cause a higher susceptibility to hearing loss as certain genes can cause this proneness. […] Tumors or bone growths: Abnormal growths in the outer or middle ear can damage or affect hearing ability. […] Cholesteatoma: Hearing loss can occur from skin that grows in the ear or behind the eardrum often due to chronic middle ear infections. […] Autoimmune disorders: Rheumatoid arthritis, lupus and several other autoimmune disorders can affect hearing.
  • #2 Causes of Hearing Loss – Sound Relief Hearing Center
    https://www.soundrelief.com/causes-hearing-loss/
    Estimates indicate that anywhere between 35 and 55 percent of age-related hearing loss can be attributed to genetics. This means that if your parents or other older relatives have exhibited signs of excessive age-related hearing loss, you are statistically more likely to experience it yourself. […] As you might assume, loud noises can cause lasting damage to your ears and to your ability to hear. […] Occupational Hearing Loss (OHL) is one of the most common reasons individuals experience sustained hearing loss. […] Medications taken for other medical issues can damage the ears and cause diminished hearing, which is often reversible but sometimes (unfortunately) permanent. […] Many diseases, infections, and viruses can cause hearing loss. Examples include meningitis, mumps, scarlet fever, measles, autoimmune diseases, blood vessel diseases, and ear infections.
  • #2 Causes of hearing loss
    https://www.healthyhearing.com/help/hearing-loss/causes
    Numerous drugs and medications are linked to hearing loss, known as ototoxic drugs. […] Common health conditions that are linked to hearing loss include heart disease and diabetes, and autoimmune disorders, including Hashimoto’s thyroiditis. […] Several studies published in the last few years have strongly linked sleep apnea to hearing loss. […] Iron-deficient anemia (IDA) is strongly linked to hearing loss. […] This common childhood disease is known for causing painful swelling of the salivary glands on both sides of the face but in extreme cases, the mumps can also cause swelling of the membranes that surround the brain and hearing loss. […] Researchers think stress impacts blood circulation to the ears. […] While the coronavirus is far more likely to cause breathing problems, it can occasionally infect the auditory system, studies show, leading to temporary hearing loss and tinnitus from COVID.
  • #2 6 lesser-known and better-known causes of hearing loss
    https://www.medstarhealth.org/blog/hearing-loss-causes
    About 48 million Americans, or approximately 20 percent of the population, have some degree of hearing loss. According to the Centers for Disease Control and Prevention, hearing loss is now the third-most common chronic health condition in the United States. […] Many cases of hearing loss are preventable. And many more are treatable. […] Hearing loss can be a symptom of many other conditions. Some, like diabetes, we know a lot about. And some were just recently beginning to understand. […] Hearing loss has been in the news recently because of the results of a recent study linking it to iron-deficiency anemia. This study found that iron-deficiency anemia was associated with an 82 percent higher chance of sensorineural hearing loss. […] The study didn’t determine that iron-deficiency anemia definitely causes hearing loss, but it suggested that the lack of iron may reduce blood flow to the inner ear.
  • #2 Hearing Loss in Adults: Differential Diagnosis and Treatment | AAFP
    https://www.aafp.org/pubs/afp/issues/2019/0715/p98.html
    Hundreds of medications are associated with ototoxicity. Physicians should ask about current and past use of these medications, and when current use is necessary, assure that protocols are in place to minimize risk. Ototoxicity is typically dose-dependent and more likely to occur in patients with heart failure and chronic kidney disease.
  • #2 Pictures: Top Causes of Hearing Loss
    https://www.webmd.com/healthy-aging/ss/slideshow-causes
    Hearing loss is the third most common condition in the U.S., after arthritis and heart disease. One cause is loud noise in the workplace, like machinery. About 22 million Americans face unsafe levels of noise at work. […] A serious head injury can dislocate your middle-ear bones or damage nerves and cause permanent hearing loss. Sudden changes in pressure from flying or scuba diving could also harm your eardrum or middle or inner ear. […] Hearing loss can be a side effect of some medicines, including certain antibiotics, cancer medications, and erectile dysfunction drugs. […] Certain long-lasting diseases that aren’t directly related to your ears can cause hearing loss. Some do it by interrupting blood flow to your inner ear or brain. […] Ear „stroke” (sudden sensorineural hearing loss) happens when you lose your hearing suddenly or over a few days.
  • #2 Conductive Hearing Loss: Causes, Signs, Symptoms and Treatment Options
    https://www.houstonent.com/blog/conductive-hearing-loss-causes-signs-symptoms-and-treatment-options
    Foreign body: This is usually an issue in kids who might put common items like beans or beads in their ears, but could also be seen in adults typically by accident like when a bug gets into their ear. […] Swimmer’s ear: This is known as otitis externa. It’s an ear canal infection frequently related to cotton swab use or water exposure. […] Bony lesions: These are usually associated with cold water swimming and are non-cancerous bone growths in your ear canal. […] Aural atresia (defects of your external ear canal): This is typically noted at birth and frequently seen with outer ear structure defects (microtia). […] Eardrum problems: There are a number of eardrum issues. For example, you could have a hole in your eardrum. Some individuals are born without an outer ear. Others might have an issue with their middle ear bones or have a deformed ear canal. There are also benign tumors that block the middle or outer ear.
  • #2 Clinical aspects of hereditary hearing loss | Genetics in Medicine
    https://www.nature.com/articles/gim200764
    Hearing loss is an etiologically diverse condition with many disease-related complications and major clinical, social, and quality of life implications. […] The aim of this review is to provide a comprehensive framework underlying the causes of hearing impairment and to detail the clinical management for patients with hereditary hearing loss. […] In the investigation of hearing loss, genetic forms must be distinguished from acquired (nongenetic) causes. […] More than 50% of all prelingual deafness cases are hereditary in nature, with the remaining 40% to 50% of cases secondary to environmental factors such as infectious or iatrogenic causes. […] The majority of genetic hearing loss diagnosed in infancy and early childhood is autosomal recessive in inheritance and nonsyndromic. […] Genetic hearing loss may be inherited in an autosomal dominant, autosomal recessive, or X-linked Mendelian manner, or through the maternal lineage by mitochondrial inheritance.
  • #2 Hearing Impairment: Practice Essentials, Anatomy, Pathophysiology
    https://emedicine.medscape.com/article/994159-overview
    In 2014, the American College of Medical Genetics and Genomics published a guideline that provided information about the frequency, causes, and presentations of hearing loss and suggested approaches to clinical evaluation aimed at identifying an etiologic diagnosis of hearing loss (see Guidelines). [14] […] Most sources cite genetic causes as accounting for at least 50% of hearing loss. [1, 15, 16, 17] These can be divided into syndromic and nonsyndromic types. As with all genetic syndromes, genetic causes of hearing loss may be autosomal dominant (AD), autosomal recessive (AR), X-linked, mitochondrial, or sporadic. […] Nonsyndromic deafness accounts for slightly more than two thirds of all cases of genetic deafness. It probably accounts for most cases classified as unknown. […] Antenatal causes lead to 5-10% of hearing losses. Congenital infections (eg, cytomegaloviral [CMV] infections, herpes, rubella, syphilis, toxoplasmosis, varicella) can result in SNHL. [22] Fetal exposure to teratogens (eg, methyl mercury, retinoic acid, thalidomide, trimethadione) may also result in SNHL.
  • #2 Deafness causes | Deafness in childhood
    https://www.ndcs.org.uk/information-and-support/childhood-deafness/causes-of-deafness/
    There are many reasons why a child might be born deaf or become deaf in childhood. […] Permanent deafness in children is most commonly caused by genetics, passed down in families, even though there appears to be no family history of deafness. […] Deafness can also be caused by complications during pregnancy. Infections such as rubella, cytomegalovirus (CMV), toxoplasmosis and herpes can cause a child to be born deaf. […] Different types of deafness can be associated with microtia and atresia, depending on which part of the ear is not formed or working as it should. […] Being born prematurely can increase the risk of a child being deaf or becoming deaf. […] Infections during early childhood, such as meningitis, measles and mumps, can be responsible for a child becoming deaf. […] Ototoxic drugs (drugs that can cause damage to the inner ear) used in some medical treatments can cause hearing loss, tinnitus and balance problems. […] Children being treated for cancer are at particular risk of hearing loss caused by the cisplatin-based chemotherapy agents used in childhood cancer treatment.
  • #2 Sudden Hearing Loss Treatment NYC | Mount Sinai – New York
    https://www.mountsinai.org/locations/ear-institute/conditions/sudden-hearing-loss
    Sudden hearing loss is defined as a loss of hearing that begins with no warning and for no apparent reason, developing over 24 hours or less. The hearing loss arises in the hearing organ of the inner ear (cochlea) or in the hearing nerve, not in the middle or outer ear. […] Most cases of sudden hearing loss are viral, and most patients are treated with steroids. […] Despite the fact that sudden hearing loss is a relatively common disease that has been the subject of considerable clinical research, sudden hearing loss continues to be vexing for doctor and patient because the cause often cannot be determined, the treatment isn’t always effective, and the prognosis is usually uncertain. […] In many cases, the cause of the hearing loss cannot be determined with certainty. Possible causes of sudden hearing loss include: Viral infection, Stroke, Loss of blood flow (ischemia) to the inner ear, A ruptured membrane in the inner ear.
  • #2 Hearing loss – prevention, signs, diagnosis and treatment | healthdirect
    https://www.healthdirect.gov.au/hearing-loss
    Sensorineural hearing loss is often permanent. […] Presbycusis is usually caused by a loss of hair cells in your cochlea. […] Sudden sensorineural hearing loss can be caused by many things. These include infection, stroke, head injury, medicines or other health conditions. […] Sudden conductive hearing loss can also have many causes, such as wax, ear infection, ear syringing or injury. […] Most types of hearing loss are permanent, so its important to prevent hearing loss before it occurs. If you do have damage to your hearing, you can still try to stop it from getting worse. […] The best way to protect your hearing is to limit your exposure to loud noises.
  • #2 Causes of hearing loss​: types and prevention
    https://www.amplifon.com/uk/recognising-hearing-loss/causes
    Certain medical conditions increase the risk of hearing loss. Examples include: […] High blood sugar levels can harm the small blood vessels in the inner ear, disrupting its ability to process sound effectively. Over time, this damage may lead to permanent hearing loss. […] Elevated blood pressure reduces blood flow to the delicate structures of the auditory system, which rely on a steady supply of oxygen and nutrients to function properly. […] This rare condition occurs when the immune system mistakenly attacks the inner ear, causing inflammation and progressive hearing loss, often accompanied by tinnitus or dizziness. […] Persistent or repeated middle ear infections can lead to scarring, fluid build-up, or structural damage, increasing the risk of both temporary and permanent hearing impairments.