Urinary incontinence is the uncontrollable leakage of urine. It is more common in the elderly, especially among women. Urinary incontinence is not a natural process of ageing.
The lower urinary tract consists of the urinary bladder and the bladder outlet. In a healthy person, the bladder stores urine and voids at the person's convenience. During the storage phase, the bladder relaxes and the bladder outlet contracts. No urine leaks out. However, when the bladder and / or the bladder outlet are not functioning normally, urine may leak.
There are four types of urinary incontinence: