Gynecological surgery put indwelling urinary catheter mainly for the following reasons: First, gynecological surgery is often pelvic surgery, pelvic and bladder, so in order to avoid damage to the bladder when doing surgery, insert a catheter into the urethra, you can touch the catheter in the bladder in the process of surgery, to avoid damage to the bladder. Second, in the postoperative period, because the patient needs to rest in bed, it is inconvenient to get up to relieve urination, with the indwelling urinary catheter to solve the problem of urination, the indwelling urinary catheter will be opened once every four hours, clinically solved the problem of the patient’s difficulty in relieving urination. The above is the main reason for gynecological surgery put indwelling urinary catheter, in the postoperative period must strengthen the local care, to avoid causing inflammatory reaction of the urinary tract.