How Common Is Hyperthyroidism?

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How Common Is Hyperthyroidism?

Topic Overview


  • Can occur at any age but rarely affects children.
  • Affects women more often than men.

Graves' disease, the most common cause of hyperthyroidism:1

  • Occurs in about 1 or 2 out of 100 women.
  • Affects up to 10 times more women than men.
  • Is most common in people between ages 20 and 50.

Related Information



  1. Jameson JL, Weetman AP (2008). Hypothyroidism section of Disorders of the thyroid gland. In AS Fauci et al., eds., Harrison's Principles of Internal Medicine, 17th ed., vol. 2, pp. 2224–2237. New York: McGraw-Hill.


By Healthwise Staff
Primary Medical Reviewer E. Gregory Thompson, MD - Internal Medicine
Specialist Medical Reviewer Matthew I. Kim, MD - Endocrinology
Specialist Medical Reviewer Andrew Swan, MD, CCFP, FCFP - Family Medicine
Last Revised February 24, 2010

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