Before diagnostic scraping, ultrasound, blood and urine routine, coagulation function and vaginal secretion routine and other tests need to be done as prescribed by the doctor. Diagnostic scraping refers to diagnostic scraping, which is the most commonly used method for diagnosing uterine diseases, and is performed by scraping the uterine lining and endometrial foci for pathologic examination to make a clear diagnosis. It needs to be operated by professional doctors, and before the operation, ultrasonic examination should be carried out to understand the situation of endometrium, at the same time, it is necessary to carry out blood and urine routine, coagulation function and vaginal secretion examination to exclude acute infectious diseases or coagulation function abnormality. After the diagnostic scraping operation, we should also pay attention to appropriate rest, can not be strenuous and strenuous exercise, keep the vulva clean and dry, change and wash underwear, prohibit tub baths and sexual life for one month, but also follow the doctor’s advice to give metronidazole and other antibiotics to prevent infection, light diet, but also pay attention to tracking the pathology results.