When your endocrine tests suggest that some hormones are abnormally elevated, you also need to perform exclusion criteria for the diagnosis of PCOS: Exclusion criteria are necessary for the diagnosis of PCOS, such as significantly elevated prolactin levels, pituitary tumors should be excluded, 20% to 35% of patients with PCOS may have mildly elevated prolactin; if there is sporadic ovulation or anovulation, follicle stimulating hormone (FSH) and estradiol levels should be measured If there is sporadic ovulation or anovulation, follicle stimulating hormone (FSH) and estradiol levels should be measured to exclude premature ovarian failure and central amenorrhea; thyroid function should be measured to exclude sporadic menstruation due to hypothyroidism; if hyperandrogenemia or obvious hyperandrogenic clinical manifestations are present, atypical adrenocortical hyperplasia (NCAH), Cushing’s syndrome, androgen-secreting ovarian tumors should be excluded. So we can’t help but ask why I have PCOS? PCOS accounts for 5% to 10% of women of childbearing age (no exact prevalence reported in China) and 30% to 60% of patients with anovulatory infertility. The exact cause of PCOS is not known, but some studies suggest that it may be caused by the interaction of certain genetic and environmental factors. 1, genetic factors: PCOS has a family aggregation phenomenon, is presumed to be a polygenic disease, the current candidate gene research involves insulin action-related genes, high androgen-related genes and chronic inflammatory factors. In clinical practice, we often see sisters and mothers and daughters suffering from this disease together.2 Environmental factors: intrauterine hyperandrogenism, antiepileptic drugs, geography, nutrition and lifestyle may be risk factors, predisposing factors or high-risk factors for PCOS, and epidemiological investigations have yet to be conducted to improve the understanding of the relationship between the environment and PCOS. It can be seen that the cause of PCOS is not clear, then, blindly take soy, black beans and other health products to treat PCOS method is also lack of scientific basis. Believe in science, believe in doctors.