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Polycystic Ovary Syndrome (PCOS): Overview

Polycystic (pronounced pah-lee-SIS-tik) ovary syndrome, or PCOS, is a set of symptoms related to a hormonal imbalance that occurs in women and girls of reproductive age. PCOS may cause menstrual cycle changes, skin changes, cysts in the ovaries, and infertility. NICHD scientists are currently investigating the causes of PCOS, possible treatments, and ways to prevent this problem.

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Common Names

  • Polycystic ovary syndrome
  • Polycystic ovarian syndrome
  • PCOS
  • Hyperandrogenism (pronounced hahy-per-an-DROJ-uh-niz-uhm)
  • Androgen excess syndrome

Medical or Scientific Name

  • Polycystic ovary syndrome
Last Updated Date: 04/03/2013
Last Reviewed Date: 04/03/2013
Vision National Institutes of Health Home BOND National Institues of Health Home Home Storz Lab: Section on Environmental Gene Regulation Home Machner Lab: Unit on Microbial Pathogenesis Home Division of Epidemiology Statistics and Prevention Branch Home Bonifacino Lab: Section on Intracellular Protein Trafficking Home Lilly Lab: Section on Gamete Development Home Lippincott-Schwartz Lab: Section on Organelle Biology