Information on Overactive Thyroid

When the thyroid gland produces too much thyroid hormone, a person is said to have an overactive thyroid. Other names for the condition include hyperthyroidism and thyrotoxicosis. Women are more likely to develop it than men. The risk also increases with age. Symptoms can vary, but may include:
  • An intolerance for heat
  • Fatigue
  • Weight loss
  • Goiter.
Once the condition is diagnosed, treatment for an overactive thyroid can include surgery, radioiodine therapy, and medications.
(Click Overactive Thyroid for more information, including possible causes for this condition, the role the thyroid gland plays in the body, how hyperthyroidism is diagnosed, and more.)
Last reviewed by: Arthur Schoenstadt, MD