Surgery for rectal mucosal laxity mainly includes transabdominal, transanal, transperineal surgery, sclerotherapy, etc. The specific time is related to the condition and the operation style, and usually takes 1~3 hours. 1. Trans-abdominal, anal, perineal surgery: mainly by fixing the rectum on the surrounding tissues, and at the same time suturing the loose muscles, fascia, etc., or directly removing the loose mucosa to achieve the therapeutic purpose, this type of surgery usually takes 2~3 hours. 2. Sclerotherapy: mainly through the injection of sclerosing agent into the submucosal layer of the prolapse site, the mucosa and the muscle layer adhesion and fixation, this type of surgery is generally applicable to the rectal mucosa mild laxity. It usually takes 1~2 hours. Specific treatment recommendations should be chosen under the guidance of a physician.