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Medical condition

Hyperthyroidism

Also known as: Overactive Thyroid · Thyrotoxicosis

Hyperthyroidism is over-production of thyroid hormone, presenting with weight loss, heat intolerance, palpitations, anxiety, and tremor.

Medically reviewed
Dr. Laura Purdy · MD, MBA
Clinical Director, oMeds
Last reviewed
Overview

What you need to know

Hyperthyroidism is diagnosed by suppressed TSH with elevated free T4 and/or free T3. Graves' disease is the most common cause; toxic nodules and thyroiditis are next most common. Care is endocrinology-led, with biomarker monitoring of TSH, free T4, free T3, and antibodies as appropriate.

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Symptoms

Related symptoms

Biomarkers

Diagnostic biomarkers

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