Menstrual disorders often refer to abnormal uterine bleeding, and performing a curettage can quickly stop the bleeding and be of diagnostic value. Abnormal uterine bleeding is defined as an abnormality in the frequency, regularity, length, and volume of the menstrual cycle, which manifests itself as abnormal bleeding from the uterine cavity. It is often considered a menstrual disorder. If there is tissue left in the uterine cavity, repeated or multiple abnormal uterine bleeding, thorough scraping helps to clarify the diagnosis and can quickly stop the bleeding. In addition, diagnostic scraping has diagnostic significance. Histologic examination of the endometrium can be performed after scraping to understand the pathological nature of the endometrium, except malignant lesions, and to find out the causes of abnormal menstruation. Patients with abnormal uterine bleeding should choose to scrape the uterus before menstruation or within 6 hours of the onset of menstruation to determine the presence of ovulation or luteal dysfunction. Curettage should not be performed for those who suffer from acute or subacute genital inflammation or pelvic inflammatory diseases. Menstrual disorders are recommended to consult a doctor in time for diagnosis and treatment.