Usually, urinary incontinence after prostate surgery may be caused by infection, bladder dysfunction, external sphincter injury and so on. 1. Infection: It may be the infection of the prostate fossa that occurs after the surgery. Due to the stimulation of the infected area, the localization can cause urinary urgency and the phenomenon of incontinence. 2. Bladder dysfunction: some patients with prostate enlargement may be combined with symptoms of bladder detrusor instability, so the phenomenon of incontinence may occur after surgery. 3. External sphincter injury: If the prostatectomy is done, such as tearing off the prostate, it may lead to the injury of the external sphincter of the urethra, which may lead to the phenomenon of urinary incontinence. In addition, urinary incontinence after prostate surgery can also be seen in other diseases, it is recommended that patients go to the hospital in time to avoid delay.