Damage to the uterus usually refers to endometrial damage, endometrial damage is usually caused by uterine operations: 1, such as diagnostic scraping not only to scrape off the functional layer, the basal layer has also been damaged accordingly, so there will be damage to the endometrium. 2, to do artificial abortion surgery, the negative pressure of the relatively large case will also lead to endometrial damage, and the emergence of uterine adhesions. 3, the purging operation will be endometrial damage, when doing uterine operations must grasp the operating techniques to avoid endometrial damage and cause the emergence of the corresponding clinical symptoms. Endometrial damage, in the operation of the uterine cavity must grasp the surgical skills, to avoid endometrial damage and cause the appearance of the corresponding clinical symptoms. Once the lining of the uterus is damaged, it may lead to a significant decrease in menstrual flow or even amenorrhea, which should be actively dealt with.