Nadczynność pęcherza – Etiologia i przyczyny

Nadczynność pęcherza
Etiologia i przyczyny

Nadczynność pęcherza moczowego (OAB) to zespół objawów obejmujący nagłe, trudne do opanowania parcie na mocz, często z towarzyszącym częstomoczem i nokturą, bez obecności infekcji dróg moczowych czy innych patologii. Patofizjologia OAB jest wieloczynnikowa i obejmuje teorie neurogenną, miogenną, autonomiczną oraz sygnalizacji aferentnej, z istotną rolą urotelium jako struktury reaktywnej. Wśród przyczyn wyróżnia się zaburzenia neurologiczne (np. udar mózgu, choroba Parkinsona, SM, neuropatia cukrzycowa), przeszkody podpęcherzowe (np. BPH u mężczyzn), zmiany strukturalne pęcherza, niedokrwienie, procesy zapalne, zmiany hormonalne (szczególnie u kobiet po menopauzie), wpływ leków oraz czynniki związane ze stylem życia i stanem psychicznym pacjenta. Warto podkreślić, że OAB nie jest naturalnym elementem starzenia się, a jego etiologia często pozostaje idiopatyczna, mimo obecności subtelnych zmian neuroplastycznych i mięśniowych.

Etiologia nadczynności pęcherza

Nadczynność pęcherza moczowego (ang. Overactive Bladder, OAB) to zespół objawów charakteryzujący się nagłym i trudnym do opanowania uczuciem parcia na mocz, często z towarzyszącą częstomoczem i nokturią, występującymi przy braku infekcji dróg moczowych lub innych ewidentnych patologii układu moczowego. Etiologia tego schorzenia jest złożona i nie zawsze możliwa do jednoznacznego określenia. W wielu przypadkach przyczyna nadczynności pęcherza pozostaje nieznana i określana jest jako idiopatyczna.¹²³

Teorie patofizjologiczne nadczynności pęcherza

W literaturze medycznej wyróżnia się kilka głównych teorii wyjaśniających patofizjologię nadczynności pęcherza:¹

Teoria neurogenna – zakłada zmniejszenie impulsów hamujących i zwiększenie impulsów aferentnych z pęcherza, co powoduje wyzwolenie odruchu mikcji
Teoria miogenna – mięsień wypieracz staje się bardziej wrażliwy na stymulację cholinergiczną, co prowadzi do zwiększonej aktywności spontanicznej
Teoria autonomicznego pęcherza – zmiana lub nasilenie aktywności fazowej generowanej przez stymulację muskarynową
Teoria sygnalizacji aferentnej – spontaniczne skurcze pęcherza podczas napełniania powodują zwiększenie sygnałów aferentnych i w konsekwencji świadomość napełniania pęcherza

Dodatkowo, w nowszych badaniach podkreśla się rolę urotelium, które dawniej uważane było głównie za barierę, a obecnie rozpoznawane jest jako struktura reaktywna, zdolna do wykrywania bodźców termicznych, mechanicznych i chemicznych.⁴

Przyczyny neurologiczne

Zaburzenia neurologiczne stanowią istotną grupę przyczyn nadczynności pęcherza. Uszkodzenie lub dysfunkcja układu nerwowego może zakłócać prawidłową komunikację między pęcherzem a mózgiem, prowadząc do niekontrolowanych skurczów mięśnia wypieracza.⁵⁶ Do głównych schorzeń neurologicznych związanych z nadczynnością pęcherza należą:

Udar mózgu – może uszkodzić obszary mózgu odpowiedzialne za kontrolę mikcji⁷
Choroba Parkinsona – powoduje degenerację neuronów wpływających na kontrolę pęcherza⁸
Stwardnienie rozsiane (SM) – uszkadza drogi nerwowe kontrolujące pęcherz moczowy⁶
Uszkodzenia rdzenia kręgowego – zakłócają komunikację między mózgiem a pęcherzem⁹
Choroba Alzheimera i inne formy demencji – wpływają na zdolność mózgu do prawidłowej interpretacji sygnałów z pęcherza⁷
Neuropatia cukrzycowa – uszkadza nerwy kontrolujące pęcherz⁷

¹⁰¹¹¹²

Mechanizm OAB w przypadku chorób neurologicznych polega głównie na nadreaktywności wypieracza (detrusor overactivity, DO) wywołanej przez zmiany nadpontonowe, z zakłóceniem lub brakiem zstępujących impulsów hamujących z mózgu do rdzenia kręgowego.⁶

Przyczyny strukturalne i anatomiczne

Zmiany strukturalne w obrębie pęcherza i dróg moczowych mogą przyczyniać się do nadczynności pęcherza:¹⁰

Przerost prostaty (łagodny rozrost gruczołu krokowego, BPH) – szczególnie u mężczyzn, powoduje utrudnienie odpływu moczu¹³
Kamienie pęcherza – mogą drażnić ściany pęcherza i powodować nadreaktywność¹⁴
Guzy pęcherza lub nowotwory – drażnią pęcherz i mogą wywoływać objawy nadczynności¹⁵
Wypadanie narządów miednicy u kobiet – może wpływać na funkcję pęcherza¹⁶
Zwężenie cewki moczowej – ogranicza przepływ moczu, prowadząc do objawów OAB¹⁷

¹¹¹⁰

Uważa się, że w przypadku przeszkody podpęcherzowej (np. przerost prostaty) nadczynność pęcherza jest wynikiem reakcji pęcherza na przewlekłą przeszkodę.⁹ Mężczyźni z BPH stanowią znaczącą grupę pacjentów z OAB, gdzie blokada odpływu moczu jest najczęstszym mechanizmem patofizjologicznym.¹³¹⁸

Miogenne i metaboliczne przyczyny nadczynności pęcherza

Zmiany w samym mięśniu wypieraczu mogą przyczyniać się do rozwoju nadczynności pęcherza:¹⁹

Zwiększona spontaniczna aktywność miogenna – charakterystyczna dla niestabilnego pęcherza¹⁹
Stopniowe zlewanie się skurczów tetanicznych – obserwowane w OAB¹⁹
Zmieniona reaktywność na bodźce – pęcherz reaguje nadmiernie na nawet niewielkie stymulacje¹⁹
Charakterystyczne zmiany w ultrastrukturze mięśni gładkich – widoczne w badaniach mikroskopowych¹⁹

Badania wykazują, że niedokrwienie pęcherza może odgrywać istotną rolę w patogenezie OAB. Zmniejszony przepływ krwi do mięśnia wypieracza był proporcjonalny do stopnia dekompensacji.¹⁹ Niedokrwienie pęcherza może występować przy ciężkiej niedrożności lub w wyniku choroby naczyń obwodowych.¹⁹

Schorzenia metaboliczne również przyczyniają się do występowania OAB:¹⁰

Cukrzyca – prowadzi do uszkodzenia nerwów (neuropatia) i wpływa na funkcję pęcherza²⁰
Zespół metaboliczny – wykazuje silny związek z OAB szczególnie u mężczyzn¹⁸

¹¹

Czynniki infekcyjne i zapalne

Procesy zapalne i infekcyjne mogą wywoływać lub nasilać objawy nadczynności pęcherza:⁵

Infekcje dróg moczowych (UTI) – drażnią nerwy pęcherza, powodując niekontrolowane skurcze²¹
Przewlekłe zapalenie pęcherza – prowadzi do nadwrażliwości ścian pęcherza²²
Śródmiąższowe zapalenie pęcherza – może wywoływać objawy podobne do OAB¹⁹

¹⁰

Badania wskazują, że nawet nierozpoznane infekcje o niskim poziomie bakterii mogą przyczyniać się do objawów OAB. W jednym z badań, gdzie zastosowano antybiotyki u pacjentów z OAB, którzy uzyskali negatywny wynik standardowych testów na obecność bakterii w moczu, zaobserwowano poprawę objawów u około połowy pacjentów.¹⁸

Warto zauważyć, że markery stanu zapalnego, choć nie są typowo charakterystyczne dla OAB (w przeciwieństwie do śródmiąższowego zapalenia pęcherza), konsekwentnie znajdowane są na podwyższonym poziomie u pacjentów z nadczynnością pęcherza.¹⁸

Czynniki hormonalne

Zmiany hormonalne, szczególnie u kobiet, mogą istotnie wpływać na funkcję pęcherza:¹⁰

Menopauza – spadek poziomu estrogenów może osłabiać mięśnie dna miednicy i śluzówkę pęcherza oraz cewki moczowej²¹
Ciąża i poród – powodują rozciągnięcie i osłabienie mięśni miednicy⁵
Niedobór estrogenów – może powodować nietrzymanie moczu z parcia⁵

²³

U kobiet po menopauzie terapia estrogenowa dopochwowa może znacząco łagodzić objawy OAB, co potwierdza hormonalne podłoże części przypadków nadczynności pęcherza.⁵

Czynniki farmakologiczne

Niektóre leki mogą wywoływać lub nasilać objawy nadczynności pęcherza:⁷

Diuretyki (leki moczopędne) – zwiększają produkcję moczu i częstość mikcji⁷
Betanechol – może powodować nietrzymanie moczu poprzez stymulację skurczu mięśni gładkich pęcherza⁷
Leki wpływające na układ nerwowy – mogą zakłócać prawidłową kontrolę pęcherza²⁴

¹⁰²⁵

Niektóre leki mogą też powodować zaburzenia regulacji wydalania moczu lub zwiększać jego ilość, co pośrednio przyczynia się do objawów nadczynności pęcherza.²⁵

Czynniki związane z wiekiem

Wraz z wiekiem ryzyko wystąpienia nadczynności pęcherza wzrasta, co wiąże się z wieloma zmianami fizjologicznymi:¹¹⁸

Obniżenie funkcji poznawczych – utrudnia prawidłową interpretację sygnałów z pęcherza¹⁰
Zmiany degeneracyjne w układzie nerwowym – wpływają na kontrolę mikcji²⁶
Osłabienie mięśni dna miednicy – pogarsza kontrolę nad pęcherzem²⁷
Zwiększona częstość innych chorób przewlekłych – wpływają na czynność pęcherza¹⁶

²⁸

Warto podkreślić, że choć nadczynność pęcherza częściej występuje u osób starszych, nie jest normalnym elementem procesu starzenia i wymaga diagnostyki oraz leczenia.²⁹

Czynniki stylu życia i dietetyczne

Styl życia i nawyki dietetyczne mogą znacząco wpływać na funkcję pęcherza:²¹

Nadmierne spożycie kofeiny – działa drażniąco na pęcherz i ma działanie diuretyczne¹⁰
Alkohol – może tłumić sygnały nerwowe i działa diuretycznie²¹
Otyłość – wywiera dodatkowy nacisk na pęcherz⁵
Palenie tytoniu – zwiększa ryzyko objawów OAB³⁰
Zaparcia – wywierają nacisk na pęcherz moczowy³¹
Pokarmy drażniące – pikantne potrawy, sztuczne słodziki mogą drażnić pęcherz³²

¹⁰¹¹³³

Badania wykazują, że redukcja masy ciała u osób z nadwagą może znacząco zmniejszyć objawy OAB, co potwierdza mechaniczny wpływ nadmiernej masy ciała na funkcję pęcherza.⁵

Czynniki psychiczne

Stan psychiczny pacjenta może wpływać na objawy nadczynności pęcherza:²⁷

Stres psychologiczny – często pomijany czynnik przyczyniający się do rozwoju OAB¹⁸
Lęk – może nasilać objawy poprzez wpływ na układ autonomiczny²³
Depresja – wykazuje związek z częstszym występowaniem OAB³⁴

²²

W niektórych przypadkach czynniki psychologiczne mogą prowadzić do niepotrzebnych skurczów pęcherza, nawet gdy nie jest on całkowicie wypełniony, co prowadzi do utraty kontroli nad pęcherzem.²³

Specyficzne mechanizmy patofizjologiczne nadczynności pęcherza

Mechanizm niedokrwienia pęcherza

Coraz więcej dowodów wskazuje na istotną rolę niedokrwienia ściany pęcherza w rozwoju OAB i nadreaktywności wypieracza (DO). Badania pokazują, że wiele czynników związanych z rozwojem OAB/DO, w tym starzenie się, przeszkoda podpęcherzowa, stres psychologiczny i otyłość, wiąże się ze zmniejszonym przepływem krwi w pęcherzu.¹⁸

W przeroście wypieracza po niedrożności, zwiększone zapotrzebowanie metaboliczne w połączeniu ze zmniejszonym przepływem krwi może powodować niedotlenienie, co prowadzi do śmierci neuronów. Wskazuje na to plamiste odnerwianie, sugerujące śmierć niektórych neuronów wewnętrznych pęcherza.¹⁹

Plastyczność nerwowa w nadczynności pęcherza

Zmiany neuroplastyczne związane z OAB mogą wynikać z zaburzeń aktywności w nerwach kontrolujących wypieracz i prawdopodobnie obejmują czynnik wzrostu nerwów (NGF). Neurotransmitery, prostaglandyny i czynniki wzrostu, takie jak NGF, zapewniają mechanizmy dwukierunkowej komunikacji między mięśniami lub urotelium a nerwami, prowadząc do OAB z lub bez nietrzymania moczu z parcia.¹⁹¹⁹

OAB często występuje po urazie rdzenia kręgowego, niedrożności pęcherza lub stanie zapalnym, które mogą wyzwalać neuroplastyczność – proces adaptacyjnych zmian w systemie nerwowym.¹⁹

Współwystępowanie chorób i zaburzenia współistniejące

Nadczynność pęcherza często współwystępuje z innymi zaburzeniami układu moczowego i pokarmowego. Badania wskazują na zwiększone ryzyko nietrzymania stolca u osób z OAB. Schorzenia takie jak zespół jelita drażliwego, choroba zwyrodnieniowa krążków międzykręgowych, fibromialgia i zespół przewlekłego zmęczenia zwiększają to ryzyko.³⁵

Według badaczy, nietrzymanie moczu i stolca w kontekście OAB mogą mieć wspólne przyczyny, takie jak degeneracja narządów miednicy w połączeniu z nadaktywnością mięśni gładkich regulujących funkcje pęcherza i jelit.³⁵

Z drugiej strony, OAB może być powiązane z czynnościowymi zaparciami u kobiet. Badanie z 2017 roku sugeruje, że rozciągnięcie odbytnicy znacząco wpływa na odczucie napełniania pęcherza, prowadząc do parcia na mocz i nietrzymania moczu u niektórych kobiet.³⁵ W porównaniu z kobietami bez czynnościowych zaparć, kobiety z tym schorzeniem mają o 62% większe prawdopodobieństwo występowania OAB i trzy razy większe prawdopodobieństwo wystąpienia OAB z nietrzymaniem moczu.³⁵

Przyczyny specyficzne dla płci

Przyczyny nadczynności pęcherza u kobiet

U kobiet występują specyficzne czynniki ryzyka nadczynności pęcherza:⁵³⁶

Ciąża i poród – mogą powodować uszkodzenia nerwów i mięśni dna miednicy³⁷
Menopauza – spadek poziomu estrogenów osłabia tkanki miednicy²¹
Operacje ginekologiczne – np. histerektomia, mogą wpływać na funkcję pęcherza¹¹
Wypadanie narządów miednicy – może zmieniać anatomię i funkcję pęcherza¹⁶

Badania wskazują, że kobiety częściej niż mężczyźni cierpią na nietrzymanie moczu, co jest związane z anatomicznymi i hormonalnymi różnicami.³⁶ Podczas ciąży rosnąca macica wywiera nacisk na pęcherz, co może powodować nagłe parcie na mocz lub nietrzymanie moczu.³⁶

Przyczyny nadczynności pęcherza u mężczyzn

U mężczyzn najczęstszą przyczyną nadczynności pęcherza jest blokada odpływu moczu spowodowana przerostem prostaty (zwykle łagodnym, nienowotworowym), co utrudnia odpływ moczu i w rezultacie pęcherz musi pracować ciężej i staje się nadreaktywny.¹³

Łagodny przerost prostaty (BPH) – wpływa na przepływ moczu z cewki moczowej³⁶
Rak prostaty – może powodować objawy podobne do OAB¹⁴
Operacje prostaty – mogą wpływać na funkcję pęcherza³

¹⁰

Globalnie przeszkoda podpęcherzowa dotyka więcej mężczyzn (25%) niż kobiet (19%), przy czym BPH jest główną przyczyną tej przeszkody u mężczyzn.¹⁸ Badania wskazują również na dobrze ustaloną zależność między zespołem metabolicznym a OAB/DO u mężczyzn.¹⁸

Nadczynność pęcherza bez zidentyfikowanej przyczyny

W wielu przypadkach nadczynności pęcherza nie można zidentyfikować konkretnej przyczyny, co określa się jako idiopatyczną nadczynność pęcherza.⁷ Idiopatyczne OAB diagnozuje się przy braku neurologicznych, metabolicznych lub innych przyczyn OAB, a także stanów naśladujących OAB, takich jak infekcja dróg moczowych, rak pęcherza, kamienie pęcherza, stan zapalny pęcherza czy niedrożność ujścia pęcherza.⁷

Mimo to, badania wskazują, że nawet w przypadkach klasyfikowanych jako idiopatyczne, mogą istnieć subtelne zmiany w funkcjonowaniu układu nerwowego, mięśni pęcherza lub urotelium, które nie są wykrywalne standardowymi metodami diagnostycznymi.¹

W przypadkach idiopatycznego OAB zwykle występują te same cechy kliniczne co w przypadkach o znanej etiologii, co sugeruje wspólne mechanizmy patofizjologiczne.¹⁹

Wskazówki diagnostyczne i wnioski

Diagnostyka nadczynności pęcherza wymaga wykluczenia innych schorzeń mogących dawać podobne objawy. Szczególnie ważne jest wykluczenie:¹⁶

Neurogennej nadczynności wypieracza – wynikającej z chorób ośrodkowego układu nerwowego, która stanowi schorzenie wysokiego ryzyka i wymaga złożonej interwencji urologicznej¹⁶
Raka urotelialnego pęcherza – który może powodować zaburzenia oddawania moczu podobne do OAB¹⁶
Infekcji dróg moczowych – które mogą naśladować objawy OAB¹⁶
Kamicy układu moczowego – mogącej dawać podobne objawy¹⁶

Badanie urodynamiczne często nie pozwala rozróżnić między idiopatycznymi, miogennymi i neurogennymi przyczynami OAB.¹⁹ Dlatego dokładny wywiad medyczny, badanie fizykalne i ukierunkowane badania diagnostyczne są kluczowe w określeniu przyczyny nadczynności pęcherza.

Zrozumienie etiologii nadczynności pęcherza ma kluczowe znaczenie dla optymalizacji leczenia. Wieloczynnikowy charakter tego schorzenia podkreśla potrzebę zindywidualizowanego podejścia terapeutycznego, uwzględniającego specyficzne przyczyny i czynniki ryzyka u danego pacjenta.¹⁶

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Materiały źródłowe

#1 Overactive Bladder Syndrome: Evaluation and Management
https://pmc.ncbi.nlm.nih.gov/articles/PMC5903463/
Overactive bladder (OAB) syndrome is a chronic medical condition which has a major influence on the quality of life in a significant amount of the population. […] The etiology of OAB is still under investigation and is not well understood. However, 4 theories have been proposed to explain the pathophysiology of OAB: […] The neurogenic theory: reduction in the inhibitory neural impulses and increase in the afferent impulses from the bladder trigger the voiding reflex. […] The myogenic theory: the detrusor muscle becomes more sensitive to cholinergic stimulation leading to increased spontaneous activity. […] The autonomous bladder theory: alteration or exacerbation of phasic activity is generated by muscarinic stimulation. […] The afferent signaling theory: spontaneous bladder contractions during filling result in increased afferent output and hence the awareness of bladder filling.
#1 Overactive Bladder Syndrome: Evaluation and Management
https://pmc.ncbi.nlm.nih.gov/articles/PMC5903463/
OAB syndrome pathological conditions affect the bladder’s sensory pathway and contribute to the urge to urinate at a low bladder volume. […] A pathological partial denervation of the detrusor may induce muscle contractions leading to an urgency sensation and possible urge of urinary incontinence. […] Although OAB can affect children and young adults, this condition is most common in patients over 40 years old. […] This is a challenging condition since some of the risk factors involved are as yet unknown and suitable treatments need to be further investigated. […] The causes of OAB are not completely understood, and symptoms may differ between patients and may be confusing.
#2 Overactive Bladder | Polyuria | MedlinePlus
https://medlineplus.gov/overactivebladder.html
Overactive bladder is a condition in which the bladder squeezes urine out at the wrong time. […] Nerve problems, too much fluid, or too much caffeine can cause it. Often the cause is unknown.
#3 What causes overactive bladder? Causes, risk factors, and more
https://www.medicalnewstoday.com/articles/what-causes-overactive-bladder
The exact causes of overactive bladder (OAB) are unclear. However, risk factors for OAB include having an enlarged prostate, obesity, older age, smoking, and more. […] A review from 2018 notes that scientists do not completely understand what the causes of OAB are. In many cases, the cause of OAB is often unknown. […] Researchers have various theories about what may cause OAB. A review from 2021 notes that these theories generally relate to detrusor overactivity, which occurs when the detrusor muscle contracts involuntarily while the bladder is filling. These contractions may be spontaneous or in reaction to something. […] However, researchers note that detrusor overactivity has only been found in around 50% of people with OAB. They believe that there may be other causes of OAB, such as: a problem with the detrusor muscle, an issue with the tissues that line the bladder, a problem with the urethra, which is the tube where urine travels from the bladder out of the body, an issue with the brain or brainstem, possibly due to white matter deterioration caused by aging.
#3 What causes overactive bladder? Causes, risk factors, and more
https://www.medicalnewstoday.com/articles/what-causes-overactive-bladder
Other possible causes of OAB include nerve problems and drinking too much caffeine. […] A small study from 2023 noted that a person may develop OAB symptoms after having surgery to treat an enlarged prostate. However, the authors found that these symptoms may subside on their own four weeks after the surgery. […] OAB is a condition that causes a person to feel they need to urinate urgently and frequently. The exact causes of OAB are currently not well understood but researchers theorize the condition may be related to detrusor muscle overactivity. […] There are various risk factors that may increase a persons chances of developing OAB. These include older age, certain health conditions, and lifestyle habits such as smoking.
#4 Overactive bladder syndrome: risk factors, diagnosis, management and medicine optimisation in older people – The Pharmaceutical Journal
https://pharmaceutical-journal.com/article/ld/overactive-bladder-syndrome-risk-factors-diagnosis-management-and-medicine-optimisation-in-older-people
In the neurogenic factor theory, damage to central inhibitory pathways in the brain and spinal cord results in a loss of inhibitory effects and unmasks the early voiding reflexes that trigger detrusor overactivity. […] The urotheliogenic factor theory focuses on the role of the urothelium, which was previously considered mainly as a barrier but is now recognised as a responsive structure, capable of detecting thermal, mechanical and chemical stimuli.
#5 Overactive Bladder (OAB): Causes, Symptoms & Treatment
https://my.clevelandclinic.org/health/diseases/14248-overactive-bladder
Overactive bladder is a collection of symptoms that may affect how often you pee and your urgency. Causes include abdominal trauma, infection, nerve damage, medications and certain fluids. […] Conditions or injuries that affect your detrusor muscle cause overactive bladder. Your detrusor muscle is a collection of smooth muscle fibers in the wall of your bladder. These conditions may include: […] Abdominal trauma. Pregnancy and childbirth can stretch and weaken your pelvic muscles. Your pelvic muscles are the muscles and tissues that support the organs in your lower abdomen. Your bladder may sag out of its normal position if your pelvic muscles weaken. […] Nerve damage. Sometimes your body sends signals to your brain and bladder to pee at the wrong time. Certain diseases and trauma can cause nerve damage, including pelvic or back surgery, herniated discs, radiation therapy, Parkinsons disease, multiple sclerosis or a stroke.
#5 Overactive Bladder (OAB): Causes, Symptoms & Treatment
https://my.clevelandclinic.org/health/diseases/14248-overactive-bladder
Medications, alcohol and caffeine. All of these can dull your nerves, which affect signals to your brain and cause your bladder to overflow. Diuretics and caffeine may cause your bladder to fill rapidly and potentially leak. […] Infection. An infection, such as a urinary tract infection (UTI), can irritate your bladder nerves and cause your bladder to squeeze without warning. […] Extra weight. Having overweight can put extra pressure on your bladder, which can cause urge incontinence. […] Estrogen deficiency after menopause. Hormonal changes may cause urge incontinence. Vaginal-only estrogen therapy can help.
#6 Frontiers | Overactive Bladder Symptoms Within Nervous System: A Focus on Etiology
https://www.frontiersin.org/journals/physiology/articles/10.3389/fphys.2021.747144/full
Overactive bladder (OAB) is a common debilitating condition characterized by urgency symptoms with detrimental effects on the quality of life and survival. The exact etiology of OAB is still enigmatic, and none of therapeutic approaches seems curative. […] The prevalence of OAB increases with advancing age and is greatly varied across studies. […] Despite great strides made in the past decades, the exact etiology of OAB is still enigmatic and none of therapeutic approaches seems curative. […] An accumulating evidence has demonstrated that OAB symptoms are regarded as significant features in numerous neurological diseases, such as multiple sclerosis (MS), spinal cord injury (SCI), Parkinsonâs disease (PD), stroke, and spina bifida. […] The aim of this review was to provide a comprehensive and state-of-the-art overview of the close correlation between OAB symptoms and neurological diseases.
#6 Frontiers | Overactive Bladder Symptoms Within Nervous System: A Focus on Etiology
https://www.frontiersin.org/journals/physiology/articles/10.3389/fphys.2021.747144/full
The pathophysiology of OAB symptoms in neurological diseases appears to be multifactorial across all levels of neural control of micturition, from cerebral cortex, brain stem, spinal cord, to the peripheral nerves. […] The OAB symptoms among these neurogenic patients possibly derive from neurogenic detrusor overactivity (DO), which is characterized by involuntary detrusor contractions during bladder filling. […] The mechanism underlying MS-related OAB symptoms is mainly due to the DO induced by suprapontine lesions, with disruption or lack of descending inhibitory impulses from the brain to the spinal cord. […] The etiology of OAB is multifactorial and may arise from a broad spectrum of medical conditions, in particular neurogenic ones.
#7 Overactive Bladder: Practice Essentials, Background, Anatomy and Physiology
https://emedicine.medscape.com/article/459340-overview
OAB is primarily a neuromuscular problem in which the detrusor muscle contracts inappropriately during bladder filling (ie, storage phase). These contractions often occur regardless of the amount of urine in the bladder. OAB may result from a number of different causes, both neurogenic and nonneurogenic. […] Neurologic injuries that may cause OAB include the following: Spinal cord injury, Stroke. […] Neurologic diseases that may cause OAB include the following: Multiple sclerosis, Dementia, Parkinson disease, Medullary lesions, Diabetic neuropathy. […] Detrusor overactivity can also occur in the absence of a neurogenic etiology. Contractions can be spontaneous or induced by rapid filling of the bladder, postural changes, or even walking or coughing. Because these causes are nonneurogenic, the pressing need to urinate can be contained for a few minutes after it is first sensed.
#7 Overactive Bladder: Practice Essentials, Background, Anatomy and Physiology
https://emedicine.medscape.com/article/459340-overview
Idiopathic OAB is OAB in the absence of any underlying neurologic, metabolic, or other causes of OAB, or conditions that may mimic OAB, such as urinary tract infection, bladder cancer, bladder stones, bladder inflammation, or bladder outlet obstruction. […] Certain medications may lead to symptoms of OAB. Diuretics can cause urge incontinence because of increased bladder filling, stimulating the detrusor. Bethanechol can also cause urge incontinence through its stimulation of bladder smooth-muscle contraction. […] Heart failure or peripheral venous and vascular disease can also contribute to symptoms of OAB. During the day, such individuals have excess fluid collect in dependent positions (feet and ankles). When they recline to go to sleep, much of this fluid becomes mobilized and increases renal output, thereby increasing urine output. Many of these patients describe increased nocturia that manifests as OAB. […] Only in rare cases does it prove impossible to identify a specific cause (idiopathic OAB).
#8 Overactive Bladder Symptoms, Causes, and Treatment | Laborie
https://www.laborie.com/patients/conditions/overactive-bladder/
OAB is generally caused by bladder muscles that are overly sensitive or overactive. This overactivity is caused by damage to nervous system or to the nerves and muscles associated with bladder. While the cause of the nerve damage is often unidentified, it can result from Multiple Sclerosis, Parkinsons Disease, Alzheimers Disease, stroke or injury. […] The Overactive Bladder symptoms of urinary urgency, urinary frequency or urge incontinence may also be present in people with interstitial cystitis or post-radical prostatectomy.
#9 Causes of overactive bladder (OAB)
https://www.urineincontinence.com.au/overactive-bladder/causes-overactive-bladder-oab
Overactive bladder (OAB) is due to an abnormality in the nerve signalling to the bladder and messages to the bladder muscle (detrusor muscle). […] In OAB there is excessive nerve signalling both to and from the bladder muscle that causes it to contract out of a persons control, even when the bladder is not full. […] Most cases of OAB and detrusor overactivity are idiopathic i.e. the person does not have a defined or identifiable neurological abnormality but the bladder nerve pathways are misbehaving. […] Some cases of OAB are due to neurogenic detrusor overactivity i.e. the person has a definite neurological problem identified e.g. a spinal cord injury, past stroke or neurological condition such as Multiple Sclerosis (MS) or Parkinsons disease. […] Some cases of OAB are caused by blockage i.e. they are the result of the bladders reaction to chronic blockage.
#10 Overactive bladder – Symptoms and causes – Mayo Clinic
https://www.mayoclinic.org/diseases-conditions/overactive-bladder/symptoms-causes/syc-20355715
Overactive bladder happens when the muscles of the bladder start to tighten on their own even when the amount of urine in the bladder is low. These are called involuntary contractions. They cause an urgent need to urinate. […] Several conditions may be a part of overactive bladder, including: Conditions that affect the bladder, such as tumors or bladder stones. Conditions that affect the brain and spinal cord, such as stroke and multiple sclerosis. Diabetes. Factors that get in the way of urine leaving the bladder, such as an enlarged prostate, constipation or having had surgery to treat lack of control over urinating, called incontinence. Hormonal changes during menopause. Urinary tract infections, which can cause symptoms like those of an overactive bladder. […] Overactive bladder symptoms also may be linked to: Cognitive decline due to aging. This can make it harder for the bladder to use the signals it gets from the brain. Drinking too much caffeine or alcohol. Medicines that cause the body to make a lot of urine or that need to be taken with a lot of fluids. Not being able to get to the bathroom quickly. Not emptying the bladder all the way. This leads to not enough space in the bladder for more urine. […] Sometimes the cause of overactive bladder isn’t known.
#11 Overactive Bladder > Fact Sheets > Yale Medicine
https://www.yalemedicine.org/conditions/overactive-bladder
Overactive bladder is a condition that arises when a person experiences an urgent need to urinate multiple times per day and/or at night; the urge does not accurately reflect how full the bladder is and if its truly ready to void. […] There are several causes of overactive bladder. In some cases, however, the cause is unknown. […] Common causes include: Neurologic disease, Drinking too many fluids, Consuming too much caffeine, Smoking, Constipation, Taking diuretics (medication that leads to urination), Prior bladder surgery, Prior surgery to the uterus. […] Health conditions that can cause overactive bladder symptoms include: Diabetes, Urinary tract infections, Multiple sclerosis, Parkinsons disease, An enlarged prostate, A spinal cord injury, Stroke, Bladder stones or tumors, Pelvic organ prolapse.
#12 Overactive Bladder in Women | Cooper University Health Care
https://www.cooperhealth.org/services/overactive-bladder-women
Overactive bladder causes your bladder muscles to contract involuntarily. This makes you feel as if you need to urinate often, even if your bladder isn’t full. A number of factors can increase a woman’s risk of having OAB, including: […] Urinary tract infection (UTI) […] Nerve damage resulting from previous surgery, or abdominal or pelvic trauma […] Conditions that affect neurological function, such as multiple sclerosis, Parkinson’s disease or stroke […] Menopause […] Medications that increase urine production, such as diuretics […] Consuming alcohol, caffeine, spicy foods or other drinks/foods that can irritate the bladder […] A history of bladder cancer or bladder stones […] A condition called normal pressure hydrocephalus (NPH).
#13 Male overactive bladder (OAB)
https://www.urineincontinence.com.au/other/male-overactive-bladder-oab
Overactive bladder (OAB) is caused by abnormal messages in the nerves that supply the bladder that causes the bladder muscle to contract out of a mans control. […] In men the commonest cause of OAB is blockage i.e. due to prostate enlargement (usually benign or non-cancerous) that makes it harder for the urine to be passed and as a result the bladder has to work harder and becomes overactive. […] Some cases of male overactive bladder (OAB) are idiopathic i.e. the man does not have a defined or identifiable neurological abnormality but the bladder nerve pathways are nevertheless misbehaving. […] Other cases of OAB are due to neurogenic detrusor overactivity i.e. the person has a definite neurological problem identified e.g. a spinal cord injury, past stroke or neurological condition such as Multiple Sclerosis (MS) or Parkinsons disease.
#14 Overactive Bladder | Cedars-Sinai
https://www.cedars-sinai.org/health-library/diseases-and-conditions/o/overactive-bladder.html
Overactive bladder is caused by a malfunction of the detrusor muscle, which in turn can be cased by: […] Nerve damage caused by abdominal trauma, pelvic trauma or surgery […] Bladder stones […] Drug side effects […] Neurological diseases, such as multiple sclerosis, Parkinson’s disease, stroke or spinal cord lesions […] Bladder cancer […] Prostate cancer […] Urinary tract infection […] Normal pressure hydrocephalus.
#15 Advanced Gynecology – Overactive Bladder
https://www.advancedgynecology.com/conditions-symptoms/overactive-bladder
When the bladder wall has involuntary contractions that are immediate, this creates an overwhelming urgency and need to urinate which leads to urinary incontinence. Overactive bladder is common in older adults, affecting about 1 in 11. […] Some of the factors that can lead to the types of involuntary bladder contractions associated with OAB include: […] The occurrence of bladder abnormalities including growths such as tumors or the presence of bladder stones […] Incomplete emptying of the bladder can lead to urgency due to urine remaining in the bladder after urination […] Urinary tract infections can create symptoms that are usually associated with overactive bladder […] Medications such as diuretics and other drugs that cause accelerated urine production […] Taking lots of fluids, excessive alcohol or caffeine consumption
#16 Overactive bladder syndrome: Management and treatment options
https://www1.racgp.org.au/ajgp/2020/september/overactive-bladder-syndrome
Non-modifiable risk factors include age, sex (female), metabolic syndrome, post-menopausal status, benign prostatic hyperplasia, and pelvic organ prolapse in women. Modifiable risk factors include alcohol, smoking, obesity, caffeine intake, carbonated beverages, spicy foods, and bladder stones. […] OAB is a diagnosis of exclusion beginning with a targeted history and examination of the urogenital system with an aim to assess the burden of disease facing the patient and affecting their quality of life. […] It is imperative to rule out sinister or reversible conditions that may have similar symptomatic presentations such as UTI, urolithiasis and bladder cancer.
#16 Overactive bladder syndrome: Management and treatment options
https://www1.racgp.org.au/ajgp/2020/september/overactive-bladder-syndrome
Overactive bladder (OAB) is a common syndrome characterised by unstable bladder contractions, resulting in urinary urgency, frequency and nocturia. […] The symptoms of OAB are typically associated with detrusor overactivity. By definition, OAB is idiopathic although multiple risk factors have been identified. Such risk factors may be modifiable or non-modifiable. Identification of these is critical as reduction of exposure represents a pertinent facet of the initial treatment of OAB. […] Pertinent key differential diagnoses must be considered and excluded prior to the diagnosis of OAB being confirmed. Specifically, a neuropathic bladder from diseases of the central nervous system may result in neurogenic detrusor overactivity, a disease process that is high risk and requires complex urological input. Similarly, urothelial carcinoma of the bladder can result in irritative voiding and patients presenting with voiding dysfunction; therefore, symptoms similar to OAB may be the first signs of high-grade bladder cancer.
#17 Overactive Bladder: Symptoms, Causes, and Treatment
https://resources.healthgrades.com/right-care/overactive-bladder/overactive-bladder
An overactive bladder causes you to pass urine too often. You may experience uncontrollable, sudden, or intense urges to urinate. This can lead to urine leaks, or urinary incontinence. Many underlying conditions and factors can cause an overactive bladder. In some cases, the underlying cause is unknown. Still, treating causes or improving bladder function can help you manage an overactive bladder. […] Overactive bladder occurs when something interferes with typical bladder function and control. This can include problems with the parts of the urinary system, including different organs and the nerves. […] Conditions that may affect the urinary system and lead to an overactive bladder or incontinence include: diabetes, birth irregularities, prostate conditions, such as enlarged prostate or prostate cancer, urinary tract infections or blocked urinary tract, such as from a stone or tumor, structural conditions in the urinary tract or pelvis, such as fistulas, atypical passages that develop in the body, pelvic organ prolapse.
#18
https://link.springer.com/article/10.1007/s11884-023-00690-x
Globally, BOO affects more men (25%) than women (19%), with BPH being the number one cause of BOO in men. […] When considering factors that contribute to the development of OAB one factor that is often overlooked is the role played by psychological stress. […] There is a well-established association between metabolic syndrome and OAB/DO in men, but this link can also be shown with other urological conditions such as BPH and erectile dysfunction. […] A component of the definition of overactive bladder/detrusor is the absence of infection. However, in one study where antibiotics were administered to OAB patients who had tested negative for bacterial infection based on conventional urine bacterial levels symptoms improved in about half the patients. […] When the risk factors linked to OAB/DO are considered, inflammation and poor bladder blood flow stand out consistently.
#18
https://link.springer.com/article/10.1007/s11884-023-00690-x
There is mounting evidence that ischemia of the bladder wall plays a role in the development of OAB/DO. […] Inflammatory responses, although observed in interstitial cystitis, are not typically a characteristic of OAB/DO. However, when markers of inflammation have been examined in patients with OAB, they are consistently found to be elevated. […] Thus, inflammation is a common feature of OAB/DO which may develop when bladder blood flow is reduced, or the bladder is stressed mechanically by BOO, or directly during infection.
#18
https://link.springer.com/article/10.1007/s11884-023-00690-x
To examine the latest published findings on the pathophysiological mechanisms involved in the development of overactive bladder (OAB) and detrusor overactivity (DO), and to identify common pathways linked to the risk factors associated with these conditions. […] Evidence is accumulating, both clinical and experimental, that many of the factors linked to the development of OAB/DO, including ageing, bladder outlet obstruction, psychological stress, and obesity are associated with reduced bladder blood flow. […] Several factors linked to the development of OAB/DO are known to cause changes in bladder smooth muscle, neuronal and urothelial function. These include ageing, bladder outlet obstruction (BOO), obesity, psychological stress and undetected low level bacterial infections. […] It is well established that ageing is accompanied by many changes in the urinary system that may contribute to the increased prevalence of OAB in the elderly population.
#19 Pathophysiology of Overactive Bladder and Urge Urinary Incontinence
https://pmc.ncbi.nlm.nih.gov/articles/PMC1476015/
Storage symptoms such as urgency, frequency, and nocturia, with or without urge incontinence, are characterized as overactive bladder (OAB). […] Disturbances in nerves, smooth muscle, and urothelium can cause this condition. […] Models have been developed to mimic the OAB associated with bladder instability, lower urinary tract obstruction, neuropathic disorders, diabetes, and interstitial cystitis. […] Increased excitability and connectivity of nerves involved in micturition rely on growth factors that orchestrate neural plasticity. […] Neurotransmitters, prostaglandins, and growth factors, such as nerve growth factor, provide mechanisms for bidirectional communication between muscle or urothelium and nerve, leading to OAB with or without urge incontinence. […] Urodynamics fails to discriminate among idiopathic, myogenic, and neuropathic causes.
#19 Pathophysiology of Overactive Bladder and Urge Urinary Incontinence
https://pmc.ncbi.nlm.nih.gov/articles/PMC1476015/
The bladder may be capable of only a limited repertoire of behaviors in response to disease. […] Shared traits exhibited by unstable bladders from humans and those from animals include increased spontaneous myogenic activity, fused tetanic contractions, altered responsiveness to stimuli, and characteristic changes in smooth muscle ultrastructure. […] These shared features make it plausible that regardless of the etiology, the underlying causative mechanisms are similar. […] The concept of such a relationship among ischemia, obstruction, aging, and OAB is supported by a recent investigation demonstrating that blood flow to the detrusor smooth muscle was reduced in proportion to the level of decompensation. […] Ischemia, aside from initiating apoptosis of smooth muscle cells, damages intrinsic nerves.
#19 Pathophysiology of Overactive Bladder and Urge Urinary Incontinence
https://pmc.ncbi.nlm.nih.gov/articles/PMC1476015/
The patchy denervation suggests the death of some of the intrinsic bladder neurons. […] Bladder ischemia may occur with severe obstruction or from peripheral vascular disease. […] In the hypertrophied detrusor following obstruction, increased metabolic demands combined with reduced blood flow can produce anoxia, triggering neuronal death. […] It is plausible that the changes associated with OAB are the result of alterations in activity in the nerves controlling the detrusor. […] There is evidence that overactive bladder (OAB) of different etiology has common causative mechanisms. […] Neuroplastic changes associated with OAB may result from alterations in activity in the nerves controlling the detrusor and probably involve nerve growth factor. […] OAB often occurs after spinal cord injury or bladder obstruction or inflammation, which may trigger neuroplasticity.
#20 Overactive Bladder – The Center for Specialized Womenâs Health – Denville, NJ
https://specializedwomenshealth.com/services/overactive-bladder/
Overactive bladder represents a collection of symptoms that include: […] What causes an overactive bladder? […] Urine leakage and bladder control problems can have many possible causes. These include: […] Weak pelvic muscles â muscles that have become stretched and weak due to pregnancy and childbirth, which in turn have let the bladder sag out of position and have stretched the opening of the urethra causing urine leakage. […] Nerve damage â sending signals to the brain and bladder to empty at the wrong time. Diseases that can cause nerve damage include diabetes, Parkinsonâs, multiple sclerosis, and stroke. Trauma that can cause nerve damage includes pelvic or back surgery, herniated disc, and radiation. […] Medications, alcohol, caffeine â these products can dull the nerves, affecting the signal to the brain, resulting in bladder overflow. Diuretics and caffeine can cause rapid bladder filling and may cause bladder leakage. […] Infection â a urinary tract infection can irritate bladder nerves and cause the bladder to squeeze without warning. […] Excess weight â being overweight puts pressure on the bladder and contributes to urge incontinence.
#21 What Causes an Overactive Bladder? – Baptist Health
https://www.baptisthealth.com/blog/family-health/what-causes-an-overactive-bladder
Overactive bladder (also known as OAB) is a condition that causes the sudden and frequent need to urinate. […] What causes overactive bladder? There are several potential overactive bladder causes. […] Being pregnant and giving birth can stretch and/or weaken the pelvic muscles. […] Problems with nerve signals can affect communication between the brain and the bladder. […] Some prescription medications, such as diuretics for treating high blood pressure, have the side effect of changing the way the bladder functions. […] Alcohol and caffeine can irritate the muscles of the bladder and cause involuntary contractions. […] Urinary tract infections (UTIs) can affect the nerves leading to the bladder. […] Being overweight or obese puts pressure on the bladder. […] Changes in hormone levels that occur after menopause can affect bladder function.
#22
https://www.nuhs.edu.sg/patient-care/find-a-condition/overactive-bladder
An Overactive Bladder, also known as OAB, causes frequent and sudden urgens to urinate that may be difficult to control. […] Causes of OAB include: Physiological Increased intake of fluids (especially, coffee, tea, carbonated drinks containing caffeine), alcohol, fruits, vegetables; cool/rainy weather, indoors (especially with air-conditioning) […] Psychological Anxiety, stress, habit or social voiding and psychiatric conditions (e.g. obsessive compulsive neurosis) […] Pharmacological Certain medications like diuretics used to treat high blood pressure, heart, kidney or liver conditions, will increase urine production and cause frequent urination […] Endocrinological Diabetes mellitus and diabetes insipidus – deficiency or absence of the hormone insulin and anti-diuretic hormone respectively, resulting in increased urine production and output […] Pathological Urinary tract infection, menopause, pelvic organ prolapse, pelvic mass (uterine fibroid, ovarian cyst), bladder stone, bladder cancer, radiation treatment to bladder and pelvis, untreated heart failure, chronic cystitis, stress urinary incontinence, abnormal bladder contractions.
#23 Overactive Bladder causes and solutionsâABENA Continence Care
https://www.abena.com/knowledge-center/health-care-knowledge/continencecare/types-of-incontinence/overactive-bladder
In women, overactive bladder often occurs during pregnancy and after menopause. […] During menopause, decreased estrogen production may weaken the mucosa of the bladder and urethra, leading to overactive bladder. […] Stress can also lead to unnecessary bladder contractions, even when the bladder is not completely full. This can lead to loss of bladder control.
#24
https://myhealth.alberta.ca/Health/pages/conditions.aspx?hwid=av2014
The exact cause of overactive bladder is not well understood. […] It is known that some medicines can cause the symptoms of overactive bladder like frequency (needing to urinate often) or urgency. […] Some medicines can cause this problem. […] Your doctor will check to see if any medicines you take might be causing your symptoms.
#25
https://www.nhs.uk/conditions/urinary-incontinence/causes/
Urinary incontinence is when the normal process of storing and passing urine is disrupted. This can happen for several reasons. […] Some of the possible causes lead to short-term urinary incontinence, while others may cause a long-term problem. If the cause can be treated, this may cure your incontinence. […] The urgent and frequent need to pass urine can be caused by a problem with the detrusor muscles in the walls of your bladder. […] Sometimes the detrusor muscles contract too often, creating an urgent need to go to the toilet. This is known as having an overactive bladder. […] The reason your detrusor muscles contract too often may not be clear, but possible causes include: drinking too much alcohol or caffeine, not drinking enough fluids this can cause strong, concentrated urine to collect in your bladder, which can irritate the bladder and cause symptoms of overactivity, constipation, conditions affecting the lower urinary tract (urethra and bladder) such as urinary tract infections (UTIs) or tumours in the bladder, neurological conditions, certain medicines. […] Some medicines can disrupt the normal process of storing and passing urine or increase the amount of urine you produce.
#26 Overactive Bladder: Causes, Risk Factors, Symptoms
https://www.everydayhealth.com/overactive-bladder/causes/
Age-related loss of cognitive function can make it harder for your bladder to correctly interpret nerve signals from your brain. […] Excess body weight can put pressure on your bladder, causing nerves to signal that its full earlier and contributing to urine leakage. […] When your bladder doesnt empty fully, it can quickly fill up again, causing frequent urges to urinate. […] Estrogen deficiency may change nerve signals in the bladder and contribute to urgency.
#27 Overactive Bladder Causes & Treatments | CU Urogynecology | Denver
https://urogyn.coloradowomenshealth.com/conditions/bladder/overactive-bladder.html
Even though the exact cause may remain unknown for many patients, we do know that certain things like alcohol and caffeine can increase the amount of urine. Certain foods can serve as triggers for OAB in some women. We also know of risk factors making women susceptible to the condition. […] Risk factors for OAB include damage to the nerves between the brain and bladder, neurologic disorders, weak pelvic floor muscles, hysterectomy, childbirth, obesity, thyroid problems, medication side effects, UTI, and stroke, multiple sclerosis and other neurologic conditions affecting the brain or spinal cord.
#27 Overactive Bladder Causes & Treatments | CU Urogynecology | Denver
https://urogyn.coloradowomenshealth.com/conditions/bladder/overactive-bladder.html
Overactive bladder (OAB) can be caused by nerve damage from another medical condition or have no apparent cause. Factors increasing ones risk for OAB include age, childbirth, obesity and urinary tract infections. […] OAB occurs when the brain and bladder have mixed up nerve signals. The brain may tell the bladder to empty when it isnt really full, producing that feeling of gotta go when really there isnt much urine there. The bladder muscles can also be overactive and contract (like a spasm) when a woman isnt in the bathroom yet, causing sudden urgency or leakage of urine that she cant control. […] Mixed up nerve signals or damaged nerves are thought to be the cause. OAB and urge incontinence are common in neurologic conditions such as stroke, multiple sclerosis, Parkinsons disease, or as a result of back or pelvic surgery, herniated discs or radiation treatments. These are just a few causes though, and the cause of OAB symptoms are not always known.
#28 Overactive bladder | Beacon Health System
https://www.beaconhealthsystem.org/library/diseases-and-conditions/overactive-bladder?content_id=CON-20253609
Sometimes the cause of overactive bladder isn’t known. […] Aging increases the risk of overactive bladder. So does being female. Conditions such as enlarged prostate and diabetes also can increase the risk. […] Many people with declines in thinking ability, such as those who have had a stroke or have Alzheimer’s disease, get an overactive bladder. That’s because they’re less able to notice the symptoms of needing to urinate.
#29 Overactive Bladder: Symptoms, Causes & Treatments
https://arkansasurology.com/overactive-bladder/
Overactive bladder, or OAB, is the frequent and urgent need to empty your bladder. It affects over 30 million people in the US alone and half of the people with overactive bladder are struggling with urgency urinary incontinence (UUI) when leakage occurs. […] Overactive bladder is most common in older adults, the condition is not a normal result of aging. […] Many people believe that leaking, wetting accidents and problems urinating are normal things that just start happening as we get older, but thatâs just a myth. Overactive bladder is never normal. […] As many as 30% of men and 40% of women live with OAB because they think they donât have any options, but thatâs simply not the case.
#30 What Causes Overactive Bladder? 5 Risk Factors for OAB – Renal and Urology News
https://www.renalandurologynews.com/news/what-causes-overactive-bladder-5-risk-factors/
Patients experiencing overactive bladder (OAB) may feel not just a need to urinate many times in a given day, but may potentially encounter urinary incontinence as well. […] While being older does not guarantee OAB symptoms, older age does correlate with the likelihood of experiencing them. […] Another factor the researchers found to be consistently associated with increased risk of OAB was smoking. […] Patients with a urinary tract infection (UTI) may be more likely to experience symptoms of overactive bladder. […] Consuming substances that are seen as bladder irritants can potentially trigger symptoms, especially if consumed in large enough quantities. […] Having cardiovascular or renal disease may play a role in the risk of OAB symptoms. […] Cardiovascular and renal disease may also increase the risk for OAB because they often correlate with other conditions that may trigger symptoms.
#31 Donât Let An Overactive Bladder Hold You Back | Northwestern Medicine
https://www.nm.org/healthbeat/healthy-tips/What-Is-an-Overactive-Bladder
What causes an overactive bladder? According to Dr. Desai, there are many possible causes of OAB, including: […] Age: OAB is more common in older adults. […] Medications: Some medications, such as decongestants and diuretics (water pills), can make OAB worse. […] Medical conditions: OAB can be a symptom of other medical conditions, such as: Diabetes, Urinary tract infections (UTIs), Multiple sclerosis (MS), Parkinson’s disease, Bladder stones, Kidney disease, Enlarged prostate, Bladder cancer. […] Lifestyle factors: Stress, caffeine, alcohol, smoking and having excess weight can cause OAB. […] Constipation can also cause OAB. „People don’t realize that constipation and overactive bladder can be related,” says Dr. Desai. „The bowel sits right behind the bladder. When it’s full, it can put pressure on the bladder.”
#32 Overactive Bladder Symptoms: What Causes Urinary Urgency | First For Women
https://www.firstforwomen.com/health/overactive-bladder-symptoms-what-causes-urinary-urgency
Overactive bladder (OAB) affects at least 15 percent of women and can occur at any age, explains Carolyn Swenson, MD, Chief of the Division of Urogynecology and Reconstructive Pelvic Surgery at the University of Utah Health. […] OAB is what’s known as a multifactorial condition, meaning multiple factors can contribute to its development. Here are some of the most common causes of overactive bladder: […] One of the biggest culprits behind overactive bladder symptoms is what we consume. Caffeine, artificial sweeteners, alcohol, nicotine and certain foods (like spicy or acidic fare) can irritate the bladder lining, triggering involuntary bladder contractions. […] When irritants get metabolized into urine, the bladder wants to get rid of them by contracting, explains Dr. Swenson. This contraction causes the urgent need to urinate.
#33 Overactive Bladder: Symptoms and Causes | Tampa General
https://www.tgh.org/institutes-and-services/conditions/overactive-bladder
Overactive bladder is a blanket term that can describe both urinary incontinence and the need to urinate frequently during the day or at night. […] Some of the most common causes of an overactive bladder include: Weak pelvic muscles due to pregnancy or childbirth, Nerve damage caused by disease or trauma, Medications, alcohol or caffeine, Infection, Obesity, Menopause-related estrogen deficiency. […] The proper combination of treatment strategies will depend on the underlying causes.
#34 Etiology and Treatment of Overactive Bladder in Women | SMJ
https://sma.org/southern-medical-journal/article/etiology-and-treatment-of-overactive-bladder-in-women/
Overactive bladder (OAB) is a condition that affects millions of women in the United States (US). Although the etiology is largely unknown, risk factors include Caucasian race, insulin-dependent diabetes mellitus, and history of depression. […] Current treatments consist of behavioral/lifestyle modification, usually in combination with antimuscarinic drug therapy. Improvements in the adverse effect profiles of antimuscarinic drugs have positively impacted quality of life.
#35 Overactive Bladder: Signs, Symptoms, and Complications
https://www.verywellhealth.com/overactive-bladder-symptoms-5114619
Overactive bladder (OAB) is characterized by symptoms that occur in the absence of any predisposing factor, such as a urinary tract infection, enlarged prostate, diabetes, or medications. […] A number of co-occurring conditions appear to increase the risk of fecal incontinence in people with OAB, some of which are aging-related and others of which are not. These include irritable bowel syndrome, degenerative disc disease, fibromyalgia, and chronic fatigue syndrome. […] According to the researchers, urinary and fecal incontinence may share common causes within the context of OAB, such as the deterioration of pelvic organs paired with the overactivity of smooth muscles that regulate urinary and bowel function. Further research is needed. […] On the flip side, OAB may be linked to functional constipation in women, suggests a 2017 study in BioMed Research International.
#35 Overactive Bladder: Signs, Symptoms, and Complications
https://www.verywellhealth.com/overactive-bladder-symptoms-5114619
According to the study, rectal distention significantly influences the sensation of bladder filling, leading to urinary urgency and urinary incontinence in some women. […] Compared to women without functional constipation, women with functional constipation are 62% more likely to have OAB and three times more likely to experience OAB with urinary incontinence.
#36 What Can Cause an Overactive Bladder?
https://www.healthline.com/health/overactive-bladder-causes
This can cause your bladder to become overly active, triggering the urge to urinate more. […] Certain medications, like water pills or caffeine pills, can cause OAB-like symptoms. […] Blockages or other abnormalities in your urinary tract can cause symptoms similar to OAB. […] Certain metabolic disorders can co-occur with OAB and can be an underlying cause. […] For females assigned at birth (FAAB), OAB-like symptoms may indicate menopause or pregnancy. […] Menopause causes a sudden drop in the level of estrogen in a female body. Lower estrogen levels can cause your bladder and urethra muscles to weaken. […] During pregnancy, a uterus expands. This can put pressure on your bladder and cause sudden urges to urinate or incontinence. […] Particularly in males assigned at birth (MAAB), OAB may be caused by an enlarged prostate gland.
#36 What Can Cause an Overactive Bladder?
https://www.healthline.com/health/overactive-bladder-causes
An enlarged prostate can affect the flow of urine out of the urethra, leading to frequent sensations of urgency. […] Certain risk factors affect your chances of developing OAB. […] OAB can occur at any age, but your risk increases as you get older. […] FAABs are more likely than MAABs to be incontinent, reports the National Institute on Aging. […] Carrying excess weight puts pressure on your bladder. […] If you have OAB, there are many possible triggers for your symptoms. […] Identifying and avoiding your triggers can help reduce your OAB symptoms.
#37 Overactive Bladder: Symptoms, Causes, and Treatment | MedPark Hospital
https://www.medparkhospital.com/en-US/disease-and-treatment/overactive-bladder
Overactive bladder can be due to aging, neurological disorders, diabetes, certain medications, caffeine, alcohol, and other factors. […] Pregnancy and childbirth can cause your pelvic muscles to weaken, making it more difficult to control the bladder. […] Nerve damage due to stroke, herniated discs, multiple sclerosis, Parkinsons disease, pelvic or back surgery, or radiation therapy. Your brain and bladder may receive the wrong signal, causing an urge to urinate. […] If you are consuming certain medications, alcohol, and caffeine, your bladder may fill up quickly and overflow, leading to a leak. […] Urinary tract infection (UTI) causes bladder nerve irritation and contraction of your bladder. […] Overweight with excess pressure on the bladder and pelvis. […] Menopause leads to a decrease in estrogen levels, weakening the pelvic floor muscles and triggering overactive bladder symptoms.