The difference between anterior and posterior position of the uterus is mainly the difference in the position of the uterus and the flexion of the cervix. The uterus is located in the middle of the pelvis with the bladder in front and the rectum in the back. Both anterior and posterior positions are normal positions of the uterus and generally do not require special intervention. If the uterus is excessively anterior, uterine perforation may occur when the uterine cavity is operated improperly, and excessive anterior tilting may cause poor menstrual blood flow, but the probability of occurrence is very small, and the anterior position of the uterus is generally harmless. Second, posterior uterus posterior position refers to the direction of the uterus to the back tilt, posterior uterus is relatively more serious, may increase dysmenorrhea, endometriosis occurrence. It is prone to pressure during pregnancy, such as constipation and urinary retention. The posterior uterus can interfere with the normal discharge of menstrual blood and cause dysmenorrhea. In addition, poor discharge of menstrual blood can increase pressure in the uterine cavity and increase the reflux of menstrual blood. The refluxed menstrual blood enters the pelvic cavity through the fallopian tubes and is planted on the surface of the ovaries or the peritoneal surface of the pelvic cavity, which can easily lead to endometriosis. Treatment is usually given to patients who have developed endometriosis, including the use of the Manned IUD, oral short-acting contraceptive pills such as desogestrel ethinyl estradiol tablets, and surgical treatment.