Overactive bladder (OAB)

OAB is defined as urgency – with or without urge incontinence – where the detrusor muscle, which controls the bladder, is overactive. Key features are unusual frequency – needing to go to the toilet more than eight times a day – and nocturia – needing to get up to go to the toilet more than once during the night. OAB is associated with falls and fractures in older people because of the need to rush to the toilet. Incontinence occurs if the urge to urinate cannot be overcome and can result in unpredictable large volumes of leakage