A 72-year-old woman attended the emergency department for left lower abdominal and left buttock pain. Computed tomography (CT) revealed the small bowel protruding from the pelvis through the left greater sciatic foramen, and a left sciatic hernia was diagnosed. There was no evidence of incarceration, and her blood tests were unremarkable. After examination, the pain resolved spontaneously, but as there was a possibility that the incarceration would recur in the future, laparoscopic surgery was scheduled. An approximately 3 cm hernia orifice in the left greater sciatic foramen was observed laparoscopically in the pelvic cavity. In addition to the left sciatic hernia, bilateral femoral and obturator hernias were observed, thus we decided to repair all of them. The peritoneum was incised and dissected, and the left sciatic hernia was repaired by filling the hernia hole with a plug. The femoral and obturated hernias were repaired by covering them with mesh sheets. The patient had a good postoperative course and was discharged on the 7^th day after surgery. To date, there have been no recurrences of any hernias. The laparoscopic approach was considered useful in the repair of sciatic hernias.