The menstruation is not ovulation that is anovulatory menstruation, clinically this situation is mostly considered to be due to the following reasons: 1, polycystic ovary syndrome, patients with endocrine disorders, obesity leads to ovarian function abnormality, sparse ovulation or no ovulation, can lead to infertility. If you are preparing for pregnancy, you should actively regulate, reduce weight, and if necessary, promote ovulation to improve the conception rate.2. Perimenopausal women do not ovulate due to ovarian hypoplasia and poor follicular development, which clinically manifests itself in 2-3 months or even half a year before menstruation, and most of them belong to the anovulatory menstruation, which is clinically characterized by a relatively long period of menstruation and dribbling, and most of the clinical treatments are based on haemostasis and progesterone to regulate the endothelium.3, Adolescent functional uterine bleeding patients are often anovulatory menstruation, vaginal bleeding for a long time, serious anemia, affecting the development of children. To give timely regulation, commonly used short-acting contraceptive pills as soon as possible to stop bleeding, repair the endothelium, correct anemia, follow-up standardized short-acting contraceptive pills to regulate menstruation for 3-6 months.