Clinical practice for most REI doctors includes a combination of reproductive endocrinology and infertility. In most cases, infertility practice predominates with REI physicians considered the experts in advance fertility care with techniques such as in vitro fertilization. Other REI physicians may practice with an emphasis on reproductive endocrinology issues. Like all OB/GYN subspecialties, REI physicians also perform surgery. Common surgeries include abdominal myomectomies (removal of fibroid tumors), tubal anastomosis, operative laparoscopy for tubal disease, endometriosis and pelvic adhesions, hysteroscopic myomectomy, incision of uterine septum, lysis of adhesions and removal of polyps. Some REI physicians perform complicated surgeries for congenital abnormalities including creation of neo-vagina and resection of vaginal septum. REI physicians in academic practice often continue research efforts with both clinical and basic science research a possibility. Others participate in medical education.