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What causes hyperfunctioning thyroid nodules?

Dr. Jeanne Morrison, PhD
Family Practitioner

The specific cause for thyroid nodules is unknown. However, it is believed that a genetic disorder may affect the TSH receptors, leading to a hyperfunctioning thyroid. Other causes are certain disorders (genetic or autoimmune) which often affect the thyroid gland. Childhood radiation has been linked to developing thyroid nodules, too. Finally, an iodine deficiency or certain medications may be a contributor to the development of thyroid nodules.

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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.