Polycystic ovarian syndrome (Stein-Leventhal syndrome) is a complex endocrine disorder affecting women in their reproductive years.
It is characterized by increased androgen production and disordered gonadotropin secretion, which results in chronic anovulation.
It is the leading cause of anovulatory infertility and hirsutism.
PCOS is also associated with disorders of reproduction, metabolism, and general health, including increased risk of miscarriage, insulin resistance, hyperlipidemia, cardiovascular disease, and endometrial cancer.
Obesity is common but not universal in women with PCOS.
Women with PCOS have high rate of type 2 diabetes; these women have hyperlipidemia and a greatly increased risk of cardiovascular disease.