Thyroid Cancer Symptoms and Warning Signs

Medical Author: Melissa Conrad Stoppler, MD
Medical Editor: Dennis Lee, MD

Each year, about 20,000 people in the U.S. develop cancer of the thyroid gland, a butterfly-shaped organ located on the lower front of the neck just below the Adam's apple. The thyroid gland produces thyroid hormones that regulate metabolism. Thyroid cancer can occur in anyone, but certain groups of people are at greater risk for developing the condition. These include:

  • Older people - Thyroid cancer is more common in people over 30 years of age than in younger adults or children.
  • Women are two to three times more likely than men to develop thyroid cancer.
  • Caucasians in the U.S. are at greater risk than African Americans for development of thyroid cancer.
  • Exposure to radiation, including radiation therapy or nuclear fallout, poses an increased risk for developing thyroid cancer.
  • People with a family history of thyroid cancer or who have rare syndromes involving tumors of multiple glands are at a greater risk for thyroid cancers.

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