Abstract
                 Endometriosis is condition in which presence of functioning endometrial tissue outside the uterine cavity. It is of  two types, pelvic and extrapelvic types. Scar endometriosis is a rare entity and extrapelvic type and very difficult  to diagnose. The incidence of scar endometriosis is 0.03% to 0.15%. It is commonly occur after obstetrical and  gynecological surgeries. We report a rare case of scar endometriosis in 28 years Indian female who presented with  anterior abdominal wall swelling and pain in the mass during menstrual cycle since 1 year at lower abdominal  cesarean section site after 2 years of surgery. The purpose of presenting this case is to discuss clinical features,  incidence, pathogenesis, and histopathological findings. Histopathology plays a key role in the diagnosis of scar  endometriosis.