Uterine fibroids are the most common benign tumors of the female genitalia and the most common tumors in the human body. Most of them are asymptomatic and are occasionally detected during gynecological examination or ultrasound. The symptoms are closely related to the location, growth rate and degeneration of the tumor, but not to the size or number of tumors. Menstrual changes are the most common symptom. Large interstitial fibroids increase the size of the uterine cavity and the endometrium, resulting in shortened cycles, increased menstrual flow, prolonged periods, irregular vaginal bleeding, and continued anemia due to prolonged menstrual flow. Patients often complain of abdominal distention and a hard, irregularly shaped mass in the lower abdomen. The fibroids may compress the bladder and cause frequent urination, difficulty in urination, and urinary retention, and compression of the rectum may cause difficulty in defecation. Acute abdominal pain may occur when the myoma is degenerated, such as when the subplasmalemma is twisted, or when the myoma is red and degenerates, with severe abdominal pain and fever. Submucosal leiomyosarcoma protruding from the vagina is susceptible to infection and necrosis, resulting in a large amount of purulent discharge and flesh-like tissue with a foul odor. In addition, there may be increased leucorrhea, lower abdominal cramps, and back pain. Most fibroids have no obvious symptoms, and the most common symptoms are increased menstrual flow, abdominal mass and pressure symptoms.