Hyperthyroidism Specialists in Mylapore, Chennai, Tamil Nadu
Hyperthyroidism is a condition in which the thyroid gland produces and releases excessive amounts of thyroid hormone, causing the body's metabolic processes to …
Health Conditions A–Z
LabDekho500+ Diseases & Conditions Explained
Understand symptoms, causes, treatment options and prevention for hundreds of conditions — written for patients, reviewed for accuracy.
Causes of Hyperthyroidism
Most commonly caused by Graves' disease, an autoimmune condition in which antibodies stimulate the thyroid gland to overproduce hormone. Other causes include toxic nodular goitre, where one or more thyroid nodules independently produce excess hormone, and thyroiditis, an inflammation of the thyroid gland that can cause a temporary release of excess stored hormone. Excessive intake of thyroid hormone medication or, rarely, iodine-containing substances can also lead to hyperthyroidism in susceptible individuals.