A member asked:

What is the cause of hyperthyroidism usually?

A doctor has provided 1 answer
Dr. Quang Nguyen answered

Specializes in Endocrinology

Graves' disease: Autoimmune thyroid disease- graves' disease is the most common cause of hyperthyroidism. Other causes include inflammation of the thyroid, drug induced hyperthyroidism, hyperactive thyroid nodule or nodules, rarely pituitary tumor....

Answered 8/31/2013

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