Endometrial thickening scraping can be done during menstruation. Endometrial thickening may be caused by endocrine disorders or endometrial diseases, which usually cause heavy menstrual flow, prolonged menstrual period, etc. It is necessary to carry out endometrial biopsy through scraping or to stop bleeding in an emergency, and it is necessary to choose the examination and treatment method and timing by professional doctors according to the condition. Endometrial thickening may be caused by endocrine dysfunction, which leads to the continuous growth of endometrium under the influence of estrogen, or endometrial polyps, hyperplasia, or even malignant tumors, etc. Abnormal bleeding such as incessant vaginal bleeding and increased menstrual bleeding may be accompanied by lower abdominal distension, anal swelling, etc., which requires timely medical attention to clarify the condition and target treatment. If the patient is bleeding vaginally, but the amount of vaginal bleeding is not too much, menstruation is regular or no vaginal bleeding, and the general condition is good, we will first give progestins such as medroxyprogesterone, dydrogesterone, etc., or drugs such as tranexamic acid, Yunnan Baiyao, etc., to stop the bleeding, or wait until the end of the menstruation, and then carry out the scraping of the uterine cavity, such as biopsy, to avoid the emergence of infection or aggravate the condition of the endometrial pathology or the cause of the disease. If the vaginal bleeding is excessive, the patient has anemia, fatigue and other discomforts, and the use of drugs such as medroxyprogesterone, dydrogesterone, tranexamic acid, snake venom hemagglutinin and other drugs do not have a good effect on hemostasis, the choice will be made in the vaginal bleeding or the menstruation period to carry out urgent scraping to remove the thickened endometrium, to achieve the purpose of hemostasis, and endometrial biopsy, to determine endometrial pathology or the cause of the endometrial lesions. If a woman finds that the endometrium is thickened, it is recommended that she consult a doctor in a timely manner and have the doctor choose the examination and treatment method and timing according to her condition, rather than blindly using medication on her own judgment.