Overflow incontinence is a type of urinary incontinence. It is the inability to control the release of urine. Overflow incontinence may occur when the bladder neck or the urethra is blocked. Or it may happen when the bladder muscles aren't strong enough to empty the bladder. Urine builds up in the bladder until it becomes so full that it cannot hold any more urine. Then it leaks out (overflows) without a person being able to stop it.

Treatment will depend on the cause. Overflow incontinence may be treated with surgery. Or it may involve changing or stopping medicines you are taking if they affect the bladder's ability to empty. Treating constipation may help. Timed voiding (where you schedule regular times to use the toilet) may also help. Other treatment options may include using a urinary catheter or sacral nerve stimulation.