Factors that may increase the risk of thyroid cancer include:

  • Female sex. Thyroid cancer occurs more often in women than in men.
  • Exposure to high levels of radiation. Examples of high levels of radiation include those that come from radiation treatment to the head and neck and from fallout from such sources as nuclear power plant accidents or weapons testing.
  • Certain inherited genetic syndromes. Genetic syndromes that increase the risk of thyroid cancer include familial medullary thyroid cancer, multiple endocrine neoplasia and familial adenomatous polyposis.
Apr. 14, 2014

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