Study of Laparoendoscopic Single Site Adnexal Surgery for Benign Ovarian and Tubal Disease

Inclusion Criteria: * Patient who undergo laparoscopic adnexal surgery due to following benign adenxal disease 1. Benign teratoma 2. Endometrioma 3. Mucinous cystadenoma 4. Serous cystadenoma 5. Benign Brenner tumor 6. Ectopic pregnancy(cornual, tubal, ovarian pregnancy, etc.) 7. paratubal cyst, parovarian cyst 8. Risk reducing bilateral salpingooophorecotmy due to familial breast/ovarian cancer syndrome 9. Other benign adnexal disease requiring surgery * American Society of Anesthesiologist Physical Status classification I-II. * Patient who have signed written informed consent Exclusion Criteria: * Uncontrolled medical disease * Active infectious disease * Previous pelvic radiation therapy * Patient who requires further procedure excluding adnexal surgery * Patient who has other pain source excluding adnexal disease * Pregnant and lactating woman