The Potential Biochemical Diagnosis Criteria and Therapeutic Effect Indexes: Sex Hormone Binding Globulin Levels and Free Androgen Index in Blood of Patients With Polycystic Ovary Syndrome

To explore whether Free androgen index（FAI）can be regarded as biochemically diagnostic indexes of high androgen hormone in blood of patients with Polycentric ovary syndrome（PCOS）. Also to explore whether Sex hormone-binding globulin（SHBG） and FAI can be seen as therapeutic effect indicatrixes of women with PCOS.

Inclusion Criteria:

• The clinical diagnosis criteria for PCOS by European Society of Human Reproduction and Embryology, and Rotterdam working group of American Society for Reproductive Medicine (ESHRE /ASRM )

Exclusion Criteria:

• hyperprolactinemia and other endocrine diseases such as high androgen hormone in blood, namely Cushing's syndrome, congenital adrenal hyperplasia ( CAH ), ovarian or adrenal tumor and so on