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The bladder is like a reservoir that gets filled with urine produced by the kidneys. When the bladder becomes full, a signal is sent to the brain, and we feel the urge to urinate. The bladder is therefore controlled by the brain.
There are receptors in the bladder wall that send signals to the brain when action is needed. The brain then sends a message to the bladder muscle, instructing it to either expand (to store urine) or contract (to empty the urine).
Overactive Bladder (OAB), also known as hyperactive bladder, is a clinical syndrome characterized by involuntary muscle contractions of the bladder that cause a sudden and uncontrollable urge to urinate in some individuals. This bladder dysfunction can occur at any time during the day.
Overactive bladder is defined by the presence of urinary urgency, usually associated with one or more of the following symptoms (in the absence of urinary tract infection or other disease):
You may have a sudden or irresistible urge to urinate, associated with an inability to hold urine or regulate it.
You feel an urgent need to urinate and you experience leakage episodes or difficulty retaining before reaching the toilet.
You experience the need to urinate so frequently that it becomes a major burden on your life (generally 8 or more times a day).
You get up more than once a night to urinate.
Although its prevalence increases with age1, urinary incontinence is not confined to the elderly. It affects both men and women.
Experienced as a real handicap, it puts patients in real distress, considerably altering their quality of life2.
Milsom I et al. “How widespread are the symptoms of an overactive bladder and how are they managed? “ A population-based prevalence study. BJU Int. 2 001 Jun; 87(9):760-6.
Kinsey, D., Pretorius, S., Glover, L. & Alexander, T. The psychological impact of overactive bladder: a systematic review. J. Health Psychol. 21, 69–81 (2016).
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