Stress incontinence is losing urine without meaning to during
physical activity, such as coughing, sneezing, laughing, or
exercise. Incontinence - stress Causes, incidence, and risk
factors To hold urine and control urination, the lower urinary
tract and nervous system need to be working normally. You must
also be able to recognize and respond to the urge to urinate.
The average adult bladder can hold over 2 cups (350 ml - 550 ml)
of urine. Two muscles are involved in controlling urine flow:
The sphincter, which is a circle-shaped muscle around the
urethra. You must be able to squeeze this muscle to prevent
urine from leaking out. The detrusor, which is the muscle of the
bladder wall. This must stay relaxed so that the bladder can
expand. In stress incontinence, the sphincter pelvic muscles,
which support the bladder and urethra, are weakened. The
sphincter is not able to prevent urine from flowing when
pressure is placed on the abdomen (such as when you cough,
laugh, or lift something heavy). Stress incontin