Abstract: Uterine fibroids are the most common benign tumors in women of childbearing age, among which submucosal fibroids account for about 10% to 15%. Submucosal uterine fibroids deform the uterine cavity, which is one of the important causes of infertility, miscarriage, prolongation and postpartum hemorrhage. Hysteroscopic surgery is the preferred treatment of submucosal uterine fibroids with the benefits of simple operation, less bleeding and fewer complications. The submucosal uterine fibroids size, operating time, pressure of palace, palace medium, postoperative intrauterine adhesions, and other factors, will affect the postoperative pregnancy. The adverse effects of those factors on pregnancy can be reduced by the preoperative pretreatment to reduce the size of submucosal uterine fibroids, by reducing the risk of cervical and endometrial lesion during operation, reducing the incidence of the body fluid overload, and preventing intrauterine adhesions by comprehensive measures. The close follow-up and other methods are also helpful for the postoperative pregnancy.

Key words: Hysteroscopes；, Leiomyoma；, Electrosurgery；, Pregnancy；, Tissue adhesions；, Therapy