Also known as an overactive thyroid, hyperthyroidism is a condition in which the thyroid gland produces too much thyroid hormone. The condition has many possible causes, including:
- Graves' disease (the most common cause)
- Thyroid nodules
- Thyroiditis (inflammation of the thyroid gland).
Some of the things that increase your risk for hyperthyroidism include being a woman or being over the age of 60.
Symptoms can vary from person to person; in fact, not everyone experiences symptoms. When they do occur, signs and symptoms of hyperthyroidism may include:
- Increased sweating
- Low tolerance for heat.
The main treatment options for this condition include:
- Antithyroid drugs
- Radioactive iodine therapy
The appropriate treatment(s) for your situation will depend on your age, the cause of your overactive thyroid, and whether you have other medical conditions.
(For more information on this condition, including how it is diagnosed, click Hyperthyroidism.)