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Why may I need radioiodine therapy for thyroid cancer or my thyroid gland?

You may need radioiodine therapy:
  • If you have thyroid cancer, or
  • If your thyroid gland is overactive (hyperthyroidism)
Your doctor may need to treat your disease by causing your thyroid gland to stop working. Your thyroid gland needs iodine to do its job and is always looking for iodine to absorb. During this treatment, you are given iodine that is radioactive. Your thyroid gland absorbs this, and little by little the thyroid tissue is destroyed.

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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.