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Subclinical Hyperthyroidism

Medically reviewed by Last updated on May 6, 2024.

What is subclinical hyperthyroidism?

Subclinical hyperthyroidism is a condition that develops when the amount of thyroid stimulating hormone (TSH) in your blood is low. TSH is made in the brain and controls how much thyroid hormone is made. Thyroid hormones help control body temperature, heart rate, growth, and weight. Subclinical hyperthyroidism can lead to hyperthyroidism.

Thyroid and Parathyroid Glands

What causes subclinical hyperthyroidism?

If you have a family member with hyperthyroidism, your risk for subclinical is increased. Any of the following can cause hyperthyroidism:

What are the signs and symptoms of subclinical hyperthyroidism?

The signs and symptoms may develop slowly, sometimes over several years.

How is subclinical hyperthyroidism diagnosed?

Your healthcare provider will ask about your symptoms and the medicines you take. Tell your provider about your medical history and if anyone in your family has thyroid disease. A blood test will show your TSH level.

How is subclinical hyperthyroidism treated?

You may not need any treatment, or you may need any of the following:

Treatment options

The following list of medications are related to or used in the treatment of this condition.

Call 911 for any of the following:

When should I contact my healthcare provider?

Care Agreement

You have the right to help plan your care. Learn about your health condition and how it may be treated. Discuss treatment options with your healthcare providers to decide what care you want to receive. You always have the right to refuse treatment. The above information is an educational aid only. It is not intended as medical advice for individual conditions or treatments. Talk to your doctor, nurse or pharmacist before following any medical regimen to see if it is safe and effective for you.

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Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.