Overactive bladder is a condition in which the bladder muscle contracts frequently, triggering the sensation of the urge to urinate. This can be caused or worsened by various bladder irritants in the diet, by aging, by nerve dysfunction, or unknown causes.

Sometimes it also results in involuntary leakage of urine. This is a condition that is more common in women than men. It is also treatable, with options ranging from dietary changes, bladder retraining therapy, physical therapy, medications, or nerve stimulator treatments.