Other names: Bladder Hyperactivity; Bladder Muscle Dysfunction - Overactive; Chronic overactivity of the bladder; OAB; Spasmodic Bladder
An overactive bladder is when there is a sudden urge to urinate that may be difficult to control and can happen even though the bladder is not full. This occurs when there is a problem with nerve signals within the bladder or when the muscles of the bladder are over active so contract involuntarily.
