A variety of pathogenetic mechanisms underly rectal prolapse. Treatment is predominantly operative. Some of the basic surgical techniques are reviewed. The modification of posterior rectopexy with ampoxen, implicated at the Department of Surgery of the Medical Academy in Sofia, is presented. After exposure of the rectum at the side of the sacrum, the intestine is fixed to the presacral fascia. The aim is to create adhesions. Septic complications are avoided, which otherwise, with applications of other synthetic implants are quite common. Experience is recorded with the application of the method in three patients, who were followed up over a period of 2 years.