NIH Websites Are Changing

Beginning in late July, NIH will start introducing a new website experience designed to make it easier to find health information, research, funding opportunities, and other resources. During the transition, you may notice changes to navigation, page layouts, and where some information is located.

Polycystic Ovary Syndrome (PCOS)

PCOS, also known as Polyendocrine Metabolic Ovary Syndrome (PMOS), is a set of symptoms related to a hormonal imbalance. Symptoms can affect metabolic, cardiovascular, inflammatory, reproductive, and other aspects of health. PCOS may cause menstrual cycle changes; skin changes such as increased facial and body hair and acne; growths in one or both ovaries, often clumps of ovarian follicles that have stopped developing; and infertility. People with PCOS may also have metabolic issues, such as insulin resistance or obesity.