By thick lining, women generally mean thickening of the uterine lining. In patients with thickening of the uterine lining, there is a certain amount of pain when scraping the uterus, which is usually tolerable. Curettage is a kind of surgery often used in gynecology clinic, which plays an extremely important role in the diagnosis and treatment of many diseases. Patients with thickened endometrium usually experience significant pain when scraping the uterus, and most women can tolerate this level of pain without the use of anesthesia. For some patients who are too sensitive to pain, anesthesia can be used before the procedure. Although anesthesia after scraping can eliminate pain, but increased the risk of anesthesia, should be carefully selected.