Background: To asses the results of laparoscopic surgical treatment of bowel endometriosis with transvaginal resection of the rectum employing ultrasonic energy retrospective study.Method: 100 patients with symptoms of narrowing or partial obstruction of colon were submitted to laparoscopic resection of rectosigmoid tract through a vaginal route. Length of surgery, blood loss, histopathological extent of rectal invasion, surgical complications, and length of hospital stay were the main analyzed outcomes.Results: Mean operative time was 281 min, blood loss was 250 ml on average, length of stay was 8 days, bowel movements were after 3.5 days, the mean length of bowel-resected segments was 13.3 cm, the disease was multifocal in 64% and multicentric in 36% of surgical specimens.Conclusion: Laparoscopically assisted vaginal resection of rectosigmoid colon affected by endometriosis using ultrasonically activated shears with mechanical intestinal anastomoses tension free is a safe and effective procedure for surgical management of severe pelvic endometriosis with bowel involvement. [ABSTRACT FROM AUTHOR]