Junior high school students have excessive menstrual flow, may be dysfunctional uterine bleeding, can be taken under the guidance of the doctor to regulate the artificial cycle approach. In junior high school girls, the gonadal axis is not well developed and the ovaries cannot ovulate regularly. As the ovaries cannot ovulate regularly, dysfunctional uterine bleeding may occur, which may lead to heavy menstrual flow and long duration of menstruation, and secondary anemia may occur. Adolescent girls with heavy periods need to stop the bleeding and correct the anemia first. If the hemoglobin is above 80g/L, medications such as dextroprogesterone or progesterone can be taken. If the hemoglobin is below 80g/L, the endometrial repair method is usually adopted, such as taking estradiol valerate or combined estrogen. After the bleeding stops, use drugs to regulate the menstrual cycle under the guidance of the doctor, you can take oral compound short-acting contraceptive pills, or you can take estrogen-progestin sequential therapy.