Among women, morbid obesity is a risk factor for stress urinary incontinence, or uncontrollable urine loss. A large, heavy abdomen and relaxation of the pelvic muscles due to morbid obesity may cause the valve on the urinary bladder to weaken, leading to leakage of urine with coughing, sneezing, or laughing. Bariatric surgery has been found to improve stress urinary incontinence. Less weight is placed on the bladder, and other physical changes take place to improve this condition.
44% of patients who had gastric bypass surgery experienced complete resolution of stress urinary incontinence.2