In general, the perineal approach to rectal prolapse is performed in fragile patients who cannot tolerate the abdominal approach, such as elderly patients, patients with severe heart or lung disease, patients at high risk of general anesthesia, or patients with a history of abdominal surgery. The authors performed Delorme procedure, Altemeier procedure, and the stapled transanal rectal resection (STARR) procedure through a perineal approach, depending on the degree of rectal prolapse. The STARR procedure was used for mucosal prolapses less than 3 cm from the anus, Delorme procedure for prolapses larger than 3 cm, and Altemeier procedure for full-thickness prolapses.