Currently, the diagnosis and treatment of polycystic ovary syndrome are clinically confusing, causing panic and confusion among women of childbearing age. Polycystic ovary syndrome is an endocrine disorder syndrome in which reproductive dysfunction coexists with abnormal glucose metabolism. It is the most common cause of menstrual disorders and infertility in women of childbearing age. The diagnostic criteria for polycystic ovary syndrome must have the following three conditions: 1. polycystic ovarian changes; 2. sporadic ovulation or ovulation disorders; 3. hyperandrogenemia or androgen increase. The main manifestations of polycystic ovary syndrome: 1) menstrual disorders: menstrual disorders, amenorrhea, anovulation, infertility; 2) hyperandrogenism: such as hirsutism, acne, masculinity; 3) obesity and insulin resistance: overweight or obesity, acanthosis nigricans. Prevention of polycystic ovary syndrome 1, low-fat, low-sugar, low-calorie, optimal diet structure, balanced nutrition to help health. 2, to have a good mood, depression, anger and fear and other bad emotions will stimulate the fragile nerves, destroy the regulation of endocrine and reduce the immunity of the body, which directly affects the health of women. The most suitable treatment method will be developed by the doctor according to the patient’s physical condition and the severity of the symptoms of the disease, and the patient needs to actively cooperate with the doctor’s treatment. The patient needs to actively cooperate with the doctor, not only that, the patient also needs to do a good job in daily diet, living, mental, exercise and other aspects of regulation, so as to cure it as soon as possible.