NIH Websites Are Changing

NIH is moving the launch of its new website to the fall to ensure the best possible experience for everyone who relies on our websites for health information, research, funding opportunities, and other resources.

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.