A Case of Perineal Endometriosis at the Site of Episiotomy Scar

Endometriosis generally occurs in the pelvis, particularly in the broad ligament, round ligament, ovaries, fallopian tubes or uterosacral ligament. However, many unusual sites have been described, including the umbilicus, cesarean section scars, hernia sacs, appendix, vagina, vulva, omentum and perineum. We experienced a case of perineal endometriosis diagnosed according to cyclic perineal pain associated with menstration and report it with brief review of literature.