Results: Since April 19, 2004 to November 19, 2004, of 57 patients who had constipation due to recto-ano intussusception were treated by Délorme procedure at the Medical University center Ho Chi Minh city, the youngest age is 19 and oldest is 74, male is 12, female is 45; isolated recto-ano intussusception is 41, combined rectocele is 16.