Polycystic ovary syndrome (PCOS) is an endocrine syndrome with multiple causes (i.e., unknown etiology) and polymorphic clinical manifestations, characterized by hyperandrogenism, hyperluteinizing hormone, hyperinsulinism and insulin resistance, with amenorrhea, scanty menstruation or gonorrhea, polycystic ovarian changes, infertility, hirsutism, obesity and acanthosis nigricans as its clinical manifestations. PCOS is one of the most common endocrine disorders in adolescent and fertile women, and is the most common cause of menstrual disorders in women of childbearing age. PCOS can also cause metabolic disorders, which can affect women throughout their lives. Prevention and care] 1, starting with children and adolescents, to prevent obesity. Promote balanced recipes and appropriate physical activity to control weight. 2, pay attention to the diet regular ration, should not overeat or overeat sorghum thick taste, sweet food, especially obese patients diet should be light, and to avoid eating cold, cold, spicy and dry products, so as not to damage the spleen and stomach. 3, keep a relaxed mood, avoid worry and depression, which can damage the liver and spleen. 4, ovulation drugs should not be used too much or too often to prevent damage to ovarian function or the possibility of inducing ovarian cancer. 5.For long-term anovulation, excessive endometrial hyperplasia should be prevented to prevent the occurrence of endometrial cancer. 6.Due to the long-term adverse effects of PCOS, such as diabetes, hypertension and cardiovascular disease, long-term follow-up is recommended.