Under normal circumstances after the ovaries have matured, in most cases as long as there is regular menstruation, there should be a normal mature egg discharged every month. However, menstruation does not necessarily mean ovulation, for example, adolescent girls, due to the ovarian function is not yet fully developed, it is easy to have anovulatory menstruation, this situation is generally due to the lack of estrogen and progesterone secretion, menstrual dribbling and other situations. Some menopausal women are also prone to anovulatory menstruation due to the gradual decline of ovarian function. As long as the menstrual cycle is normal, excessive bleeding or prolonged menstruation will not occur, and no special treatment is usually needed. If there is excessive bleeding or menstrual bleeding, prolonged menstrual period, you need to do timely abdominal ultrasound and sex hormone six and other related examinations, under the guidance of the doctor, symptomatic drug treatment, to avoid excessive bleeding, resulting in anemia.