Hysteroscopic myomectomy is the best way to treat intracavitary uterine disease and potentially preserve its structure. Submucous fibroid excision by hysteroscopy has reduced morbidity, length of hospital stay and postoperative pain, besides it is more economical, with fast recovery and return to daily activities and earlier return to sexual activity than laproscopic myomectomy/hysterectomy. Leiomyomas are the most common tumors of the uterus. The incidence of leiomyosarcoma is of 0.1%. The complaints may be abnormal uterine bleeding (AUB), infertility, recurrent pregnancy loss (RPL), dysmenorrhea, abdominal discomfort and sensation of weight in the pelvis. Laceration of the uterine cervix and uterine perforation are two of the most frequent complications, mainly when the use of GnRH analog precede the procedure, causing atrophy and difficulty of cervical dilation with Hegar dilator.