Having myomectomy surgery (removing fibroids, leaving uterus) can have adverse effects on later pregnancies...leaving the uterus weak and sometimes unable to support late pregnancy, which can increase the risk of uterine rupture. Most OB's want women who have had a myomectomy to have a c-section (often a bit early, like at 37-38 weeks) for delivery if they have a subsequent pregnancy. Those risks weren't acceptable to me, so that's why I left my fibroids alone. As I said, pregnancy seemed to "cure" them.