The symptoms of bladder sphincter relaxation vary in men and women. In women, the bladder sphincter is the main muscle group for urinary control. Stress incontinence can occur with a relaxed sphincter, which means that when the patient coughs loudly, laughs or walks quickly, the abdominal pressure rises and urine in the bladder can involuntarily spill out of the body, and the symptoms can gradually worsen with age. Treatment can be either surgical or oral medication, and the improvement of symptoms is observed. In men with a relaxed bladder sphincter, urinary incontinence does not usually occur because in addition to the bladder sphincter, there is also the urethral sphincter, which plays the main role in controlling urine. If damage to the urethral sphincter does not occur, simple bladder sphincter damage or relaxation will not occur incontinence, nor will there be any conscious symptoms. If damage to the urethral sphincter occurs, combined with bladder sphincter relaxation, true urinary incontinence can occur, meaning that the patient will experience involuntary urine overflow for 24 hours, which cannot be treated with artificial control and requires the implantation of an artificial sphincter.