Polycystic ovary syndrome

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Definition

Polycystic ovary syndrome (PCOS) is a common condition characterized by irregular menstrual periods, excess hair growth and obesity, though it can affect women in a variety of ways.

The exact cause of polycystic ovary syndrome is unknown, but the condition stems from a disruption in the monthly reproductive cycle. The name polycystic ovary syndrome comes from the appearance of the ovaries in some women with the disorder — large and studded with numerous cysts (polycystic).

Polycystic ovary syndrome affects about one in 10 women in the United States and is the leading cause of infertility in women. Early diagnosis and treatment of polycystic ovary syndrome can help reduce the risk of long-term complications, which include diabetes and heart disease.

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Symptoms