Polycystic ovary syndrome (PCOS) is a chronic endocrine disorder in women. Characteristics of PCOS are:
Ovaries make follicles that hold eggs. With PCOS, the ovaries make the follicles, but the eggs do not mature or leave the ovary. The immature follicles can turn into fluid-filled sacs called cysts . Most women with PCOS have cysts. But women with ovarian cysts do not necessarily have PCOS.