Diagnostic scraping and purging are similar in terms of injury, both remove tissue from the uterine cavity and are similar in operation, both require full scraping with a curette, but the purpose of the operation is different. Diagnostic scraping is a full-scale scraping of the uterus to determine the presence of endometrial lesions and endometrial hyperplasia, and requires a full-scale scraping with a spatula for 1-2 weeks. A curettage is an abortion followed by suction with negative pressure, followed by scraping with a spoon for 1-2 weeks. Diagnostic scraping is close to evacuation, so there is not much difference between the two in terms of injuries. Diagnostic scraping is not only a means of stopping bleeding, but also a diagnostic tool, and the next step in the management is defined based on the pathological results of the scraping. After diagnostic scraping, the uterine cavity scrapings are sent for pathological examination. If the pathology suggests endometrial hyperplasia, progesterone supplementation is usually given; if it suggests endometrial cancer, the standard treatment for endometrial cancer is given. If a pregnant woman has an incomplete miscarriage or embryonic abortion, the uterus should be removed. Usually late removal of the uterus will result in vaginal hemorrhage. In clinical practice, it is important to pay attention to post-operative recovery whether it is diagnostic scraping or uterine evacuation, especially not to perform another scraping within a short period of time, and pregnancy within six months is not recommended. After the operation, the diet should be light, forbidden to eat spicy and stimulating food, and eat more nutritious food to facilitate the recovery of the body, and not to have sexual life in the short term.