The relationship between fibroids and pregnancy and childbirth is so intertwined that it is even said that “if you don’t have a child, you have a tumor”. What is the effect of fibroids on pregnancy? What is the effect of pregnancy on fibroids? What kind of fibroids require surgery before pregnancy? These are all questions that need to be carefully considered. 1. What should I do if I am going to get pregnant but fibroids are found during the examination? Generally speaking, if the relationship with pregnancy and childbirth is not considered, only those fibroids that are in a special location (described later), have symptoms such as heavy menstrual flow, incomplete menstruation, anemia, or are more than 5 cm in diameter need surgery. For women who are preparing to get pregnant, the indications for treatment should be appropriately wide. 2. So, what size of fibroids must be operated before pregnancy is detected? There is no clear standard. Some medical units believe that patients can consider pregnancy if the fibroids are interstitial myomas or subplasma fibroids that do not exceed 4 cm in diameter. However, patients need to be informed that the fibroid may grow rapidly during pregnancy and become red and degenerative due to ischemia, or that the subplasmalemma may twist when the uterus changes position, which may cause miscarriage or preterm delivery. 3. Assuming that fibroid removal is performed before pregnancy, how long should I use contraception after surgery to get pregnant? This is a question that cannot be answered exactly before surgery and needs to be judged according to the intraoperative situation. In general, if the fibroids are located between the muscle walls or under the plasma membrane, the number is small, the integrity of the uterine wall is not significantly damaged during the removal process, and they do not enter the uterine cavity, pregnancy is possible after 6 months of postoperative contraception.