Symptoms of Overactive Thyroid
An overactive thyroid, also called hyperthyroidism, is a condition in which the thyroid gland produces too much of the hormone thyroxine. Symptoms of an overactive thyroid can include weight loss, increased appetite, nervousness, irritability, rapid or irregular heartbeat, sweating, and trembling. Other symptoms may include fatigue, difficulty sleeping, and muscle weakness. In severe cases, an overactive thyroid can cause heart failure, coma, and even death.
Thyroxine is a hormone produced by the thyroid gland that helps regulate metabolism. When the thyroid produces too much thyroxine, it can lead to an overactive thyroid.
Diagnosis of Overactive Thyroid
If you suspect you may have an overactive thyroid, your doctor may recommend blood tests to measure your thyroid-stimulating hormone (TSH) levels. High levels of TSH indicate an overactive thyroid. Your doctor may also order other tests, such as a thyroid scan, to help confirm a diagnosis.
Treatment of Overactive Thyroid
Treatment of an overactive thyroid may include medications, such as antithyroid drugs and beta-blockers, to help reduce symptoms. In some cases, radioactive iodine may be used to destroy thyroid cells and reduce hormone production. Surgery to remove part or all of the thyroid gland may be recommended in some cases. Talk to your doctor about the best treatment options for you.