Side effects of iodine-131 therapy for hyperthyroidism

Hyperthyroidism is mainly manifested by excessive release of thyroid hormones. After using radioactive iodine 131, it can cause certain damage to thyroid tissue, thus inhibiting the synthesis and secretion of thyroid hormones, so it belongs to destructive treatment. The application of radioactive iodine 131 will destroy thyroid follicles, so to achieve the effect of treating hyperthyroidism, in this treatment process, if the normal thyroid tissue caused excessive damage, then it may cause hypothyroidism, this is also the most important side effect of radioactive iodine 131 treatment of hyperthyroidism, due to the use of radioactive iodine 131 caused by hyperthyroidism is often permanent, so patients need to take thyroid hormone replacement therapy for life.