Endocrine and reproductive effects of polycystic ovarian syndrome.

Management strategies for overweight and obese women with polycystic ovarian syndrome (PCOS) who desire fertility should include weight loss. Even a small reduction in body weight can improve ovulatory function and pregnancy rate and reduce adverse obstetric outcomes. New data suggest that letrozole should be considered as the new first-line medical treatment of anovulatory infertility in PCOS over clomiphene citrate. Second-line treatments for anovulatory infertility include in vitro fertilization, gonadotropins, or ovarian drilling.