Urge incontinence involves a strong, sudden need to urinate.
Then the bladder contracts, leading to urine leakage. Causes,
incidence, and risk factors: A person's ability to hold urine
depends on normal function of the lower urinary tract, kidneys,
and nervous system. The person must also have a physical and
mental ability to recognize and respond to the urge to urinate.
The bladder's ability to fill and store urine requires a working
sphincter muscle (which controls the flow of urine out of the
body) and a stable bladder wall muscle (detrusor). The process
of urination involves two phases: - Filling and storage During
the filling and storage phase, the bladder stretches so it can
hold the increasing amount of urine. The bladder of an average
person can hold 350 ml to 550 ml of urine. Generally, a person
feels like they need to urinate when approximately 200 ml of
urine fills up in the bladder. The nervous system tells you that
you need to urinate. It also allows the bladder to continue to
fill. The emptying