In today’s fast-paced and competitive society, menstrual disorders are very common. Many women deliberately seek to be slim, pursue high academic credit, high education, improper diet, or obesity, family genetic background of diabetes, long-term overload, poor career, frequent abortions, improper application of emergency contraceptives, etc. can cause various types of menstrual irregularities. The most common pathophysiological change is ovarian ovulation disorder (sporadic or persistent anovulation, luteal insufficiency). Most of them have a long duration of illness. Although menstrual disorders are not fatal, the danger of causing mental burden, inconvenience, anemia, infertility, and even concealing important diseases in women cannot be ignored. Let’s talk about the causes of menstrual disorders: Menstruation is caused by the normal regulation of the hypothalamic-pituitary-ovarian-uterine axis system of the central nervous system in women of reproductive age. Organic diseases at various levels of this system such as: inflammation, tumors, trauma, congenital defects of the central nervous system-hypothalamus; pituitary tumors, vascular lesions (Silhan syndrome), empty saddle sign; ovarian-uterine diseases with pregnancy complications, inflammation, tumors, trauma, polyps, endometriosis, immune abnormalities, congenital anomalies, etc. In addition, mental stress, excessive exertion or exercise, wasting or obesity, environmental changes, anorexia nervosa, etc. can also cause ovulation disorders and menstrual disorders. Systemic diseases, other endocrine diseases and medical factors such as improper hormone administration and intrauterine device can also cause menstrual abnormalities. Abnormal puberty is characterized by precocious puberty or delayed puberty. Normal pubertal development is characterized by precocious puberty or delayed puberty. Short-term menstrual irregularities can also occur with normal pubertal development. Normal over-menopause can also occur with heavy, prolonged and scanty menstruation. Prevention of menstrual disorders: 1, pay attention to menstrual hygiene: strictly prohibit sexual intercourse, tub bath and swimming; sanitary napkin clean, change regularly; wash vulva regularly; eat less cold; pay attention to rest, avoid strenuous exercise and heavy physical labor 2, pay attention to sexual hygiene: oppose sexual promiscuity and unclean sexual behavior 3, strict contraception: avoid unplanned pregnancy and abortion, the correct use of emergency contraceptives 4, reasonable diet, proper exercise: control weight in 5, pay attention to the combination of work and rest, adjust the psychological state, maintain a cheerful and optimistic