What Causes Polycystic Ovary Syndrome (PCOS)?

Doctors are not sure what causes PCOS. They believe the following might play a role:

  • Genetics
  • Weight gain or obesity
  • Higher levels of insulin in the body than usual and insulin resistance. Insulin is a hormone that helps the body use sugar available in food for energy. When someone has insulin resistance, the body does not use insulin properly.
  • Higher levels of androgens (male hormones) in the body than usual

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