Polycystic ovary syndrome (PCOS) is a heterogeneous syndrome with systemic neuro-endocrine-metabolic network dysregulation with a predominantly gonadal axis disorder. It is the most common gynecological endocrine disorder in adolescent and reproductive age women. Gao Fengxia, Department of Gynecology, Beijing Pinggu District Hospital, Beijing, China Clinical manifestations include: 1. abnormal menstruation: including primary amenorrhea, gonorrhea, secondary amenorrhea, infertility due to scanty menstruation and abnormal ovulation. 2. Hyperandrogenic manifestations: including hirsutism, acne, or laboratory indicators suggesting increased androgen levels. 3. Ultrasound: polycystic changes of the ovaries. Long-term risks: If PCOS is not intervened early and timely, it will develop progressively and lead to 1. infertility 2. endometrial cancer 3. metabolic syndrome: abnormal glucose metabolism leading to diabetes and abnormal lipid metabolism leading to cardiovascular disease. This disease needs to be controlled by long-term medication, and if controlled well, it is no different from normal people. Moreover, the treatment is individualized according to age, symptoms and fertility requirements.