The recurrence of endometriosis varies from 6% to 10% and, among the non-gynaecological sites, the bowel is involved in 12%-37%. Various symptoms, such as dysmenorrhea, dyspareunia, chronic pelvic pain, diarrhoea, constipation, cyclic rectal bleeding, colic-abdominal pain up to intestinal occlusion characterize this pathology. Surgery seems to be the best treatment especially for gastrointestinal symptoms; conservative surgery should be performed, particularly in young patients. Four cases of intestinal endometriosis were reevaluated.