There are many patients who visit the clinic for “menstrual disorders”, but during the history taking process, we find that they are not very clear about whether they are menstrual disorders and the dangers of menstrual disorders, and most of them visit the clinic only when they are ready to get pregnant, have difficulties in getting pregnant, have heavy or long periods, or do not have periods for several months. Since menstrual disorders can lead to endocrine diseases, pelvic infections, anemia, infertility, endometrial hyperplasia and even cancer, and irregular menstruation is not good for contraception and affects sexual life, women should pay attention to menstrual disorders and seek medical attention in time to avoid missing the best time for treatment. Here are some facts about menstruation 1. At the beginning of puberty, with the development of follicles in the ovaries, there are cyclical changes in the level of estrogen and progesterone in the body, and the endometrium proliferates and then sheds bleeding to form menstruation. Normal menstruation depends on the coordination of cortical, hypothalamic, pituitary, ovarian and uterine functions, if one of them is abnormal, menstrual disorders will occur. The main clinical manifestations are prolonged or short menstrual cycles or periods, dripping bleeding between periods, abnormal menstrual volume or certain abnormal symptoms. 2. To determine whether your menstruation is normal: cycle 23-35 days (refers to the interval between the first day of menstruation), menstrual period 3-7 days (refers to the number of days of each menstruation, including the beginning of very little bleeding), regular, medium volume, and no obvious menstrual pain. Exceeding this range is considered menstrual abnormality. 3.The causes of menstrual disorders: mood swings, endocrine diseases, intrauterine device, abnormal pregnancy, improper use of hormonal drugs, reproductive tract infections, systemic diseases, reproductive tract tumors, etc. 4.Clinical scraping is not the preferred method of treatment for gonorrhea! The more important purpose of diagnostic scraping is to exclude endometrial lesions or even cancer, and a few are to stop bleeding. Clinically it is also common that diagnostic scraping is not good enough to stop the bleeding, so you need a doctor to choose a treatment plan based on a comprehensive judgment of your condition. 5.Standard diagnostic name: abnormal uterine bleeding (AUB): is a common gynecological symptom and sign, as a general term, refers to abnormal bleeding originating from the uterine cavity that is inconsistent with any 1 of the normal menstrual cycle frequency, regularity, menstrual period length, and menstrual bleeding volume.