Curettage results in thinning of the lining, most of which can be facilitated by estrogen supplementation to promote the repair and growth of the lining of the uterus as prescribed by the doctor. Curettage is used to diagnose diseases and stop bleeding in emergencies, etc., and should be judged and performed by a professional doctor according to the condition. The causes of endometrial thinning may be damage to the functional layer of the endometrium, damage to the basal layer of the endometrium, or endometrial adhesions. 1. Damage to the functional layer of the endometrium: The functional layer of the endometrium grows and falls off periodically with the fluctuation of sex hormones during the menstrual cycle. If scraping causes damage to the functional layer of the endometrium, it can be repaired with its own menstrual cycle, and the thickness of the endometrium can return to normal within 1-3 months. 2. Damage to the basal layer of the endometrium: the basal layer of the endometrium belongs to the endometrial growth layer, generally does not change with the body’s menstrual cycle, you need to follow the doctor’s advice to promote the repair and growth of the endometrium through the role of estrogen for a long time, such as estradiol valerate and other drugs, some of which can play a role in certain treatment effects, if you can’t improve the situation, you may have a small amount of menstruation, infertility, and so on. 3. Endometrial adhesion: Curettage may cause uterine cavity adhesion and other long-term complications, if the endometrial adhesion, there will be endometrial thinness, menstrual blood flow is not smooth, etc., usually need to follow the medical advice through surgical separation of adhesion, supplemented with estrogen and progesterone drugs to promote the repair of the endometrial lining. Curettage surgery can be used for diagnosis or treatment of diseases, but it has the risk of causing damage to the endometrium, which should be judged and carried out by a professional doctor according to the condition. If endometrial thinning occurs after the surgery, it is necessary to go to the hospital as soon as possible, so that the doctor can formulate an individualized diagnostic and treatment plan according to the specific condition to avoid delaying the condition.