1. Pre-treatment before pregnancy: It can improve fertility, reduce pregnancy complications and improve pregnancy outcome. (1) Basic treatment: adjusting lifestyle, reducing stress and weight, and regulating body weight are the most economical and effective treatment measures. If obese people are serious about effective weight loss, they can mostly improve menstruation, reduce hyperandrogenic symptoms, and facilitate pregnancy. (2) Treatment of hyperandrogenemia: Daying 35 is preferred, which can effectively reduce androgens in the body and thereafter increase the sensitivity to ovulation-promoting drugs. It is usually taken for 3 to 6 cycles. (3) Treatment of insulin resistance: Metformin can improve insulin resistance and hyperandrogenemia. 2.Ovulation promotion treatment: After adjusting and improving the endocrine status of the body through the above treatment and pretreatment, ovulation promotion drugs can be tried under the guidance of doctors to monitor follicle development and guide sexual life to promote pregnancy. 3.Surgical treatment: laparoscopic ovarian perforation: not as the first choice. 4.Assisted reproductive technology: A small number of PCOS patients are insensitive or resistant to ovulatory drugs, and if the above treatments are not effective, IVF (in vitro fertilization-embryo transfer) is recommended.