The thyroid is a butterfly-shaped gland located at the base of the front of the neck. It produces thyroid hormone, which controls your metabolism, temperature regulation, and keeps your muscles and organs working properly.

In hyperthyroidism, the thyroid gland is producing too much hormone. This excess of thyroid hormone causes the body’s metabolism to be overactive. A simple blood test can diagnose hyperthyroidism.

What Are the Symptoms of Hyperthyroidism?

Patients with hyperthyroidism can have one or more of these symptoms:

  • A racing heart or palpitations
  • Tremors
  • Feeling jittery
  • Unplanned weight loss
  • Feeling hot all the time
  • Feeling anxious
  • Difficulty sleeping

If Graves’ disease is the cause of the hyperthyroidism (see below), a person may also experience:

  • A goiter
  • Eye problems, like swelling, redness, bulging, dryness, itching, blurry vision, double vision
css id:

Hyperthyroidism can be caused by all or part of the thyroid being overactive. In some patients, hyperthyroidism is caused by the whole gland being overactive, which is called Graves’ disease, one of the most common forms of hyperthyroidism. In addition to the thyroid gland, the eyes can be affected.

Some people’s hyperthyroidism is due to a single, or multiple, areas in the thyroid (nodules) that are overactive. This is referred to as a “toxic nodule” or “toxic multinodular” goiter.

css id:

Treatment for hyperthyroidism includes daily medications, radioactive iodine, or thyroid surgery. The therapy depends on the cause of the hyperthyroidism, response to treatment, and the preferences of the patient. Discuss any possible symptoms or concerns you may have with your primary care provider, an endocrinologist, or an ENT (ear, nose, and throat) specialist, or otolaryngologist.

css id:
  1. What treatment options do I have?
  2. How long can I take medication(s) for hyperthyroidism?
  3. At what point may a more definitive treatment, like surgery or radioactive iodine, become necessary?

Last reviewed August 2018.

HYPERTHYROIDISM VIDEOS

Dr. Gregory Randolph provides an overview of Graves’ disease, which is the cause of hyperthyroidism.

The thyroid is a butterfly-shaped gland located at the base of the front of the neck. It produces thyroid hormone, which controls your metabolism, temperature regulation, and keeps your muscles and organs working properly.

The information on ENThealth.org is provided solely for educational purposes and does not represent medical advice, nor is it a substitute for seeking professional medical care.

Get the Care You Need

Find an ENT

Think you need to consult an ENT specialist? Find someone with the expertise and location that’s best for your needs.

Be ENT Smart

Learn how to stay ENT healthy, prevent problems, and manage existing conditions to improve your, or a loved one’s, daily life.

About ENThealth.org

Find out more about the community of physician experts who can help you to Be ENT Smart and how the information was developed.