1, the surgery is mainly suitable for: (1) rectal prolapse outside the anus more than 5cm; (2) rectal prolapse outside the anus and can not be retracted back into the anus; (3) male sexual function is active and expects the surgery has no effect on sexual function; (4) old and existing internal diseases. Jiang Congqing, Department of Colorectal Surgery, Wuhan University Central South Hospital, reminds patients: (1) There are many surgical methods for rectal prolapse. For patients with severe total rectal prolapse, the role of some so-called minimally invasive treatments such as perianal injection sclerotherapy and anal loop reduction is exaggerated, and these “so-called minimally invasive treatment techniques” can be used as a small part of adjuvant treatment, but are used as the main surgery for severe total rectal prolapse, which results in a high recurrence rate after surgery. (2) For patients with severe rectal prolapse, PPH is not effective. Because PPH cannot achieve the true sense of total rectal resection, most PPH resects only the rectal mucosa and submucosa. 2. The length of our transanal resected prolapsed rectum is as long as 5-30cm, which does not require an incision from the abdomen and does not interfere with the pelvic autonomic nerves, so the procedure has the advantages of less trauma, no effect on sexual function, faster postoperative recovery and low recurrence rate. At present, this procedure is the preferred procedure for rectal prolapse in the United States.