Hyperthyroidism is a relatively common autoimmune disease, due to the overproduction of thyroid hormones, resulting in a group of clinical syndromes of hypermetabolism and increased neural excitability. At present, the treatment of hyperthyroidism mainly includes radioactive iodine 131, anti-thyroid drugs and surgery. Yang Hui, Department of Nuclear Medicine, Henan Cancer Hospital The one-time treatment relief rate is about 50% to 80%, and the total effective rate is more than 95%. The relapse rate after treatment is 1% to 4%, and the inefficiency rate is about 2% to 4%. Compared with other treatments, iodine 131 treatment for Graves’ hyperthyroidism has a higher overall efficiency, and at the same time, iodine 131 treatment has a higher price-benefit ratio. Iodine 131 treatment of hyperthyroidism is currently recognized worldwide as an effective method, which has the advantages of simplicity, safety, low cost and obvious efficacy, etc. Iodine 131 is the best choice for refractory hyperthyroidism, such as liver function impairment. Former U.S. President George W. Bush suffered from hyperthyroidism during his administration, and was finally cured of hyperthyroidism with iodine 131 treatment after many world-class authoritative medical experts’ consultation and discussion. After decades of observation of millions of cases around the world, iodine 131 treatment for hyperthyroidism has proven to be very safe and will not affect the future fertility of young female patients, nor will it lead to an increase in the incidence of tumors. Because Iodine 131 treatment for hyperthyroidism is a targeted therapy, the dose is small, and it has no effect on the neighboring people if you follow the arrangement. Hyperthyroidism patients generally have no adverse reactions after taking iodine 131, only a few patients in the 2 weeks after taking the drug early reaction, mainly nausea, vomiting, dizziness, fatigue; another few patients have skin rash and itching, generally mild, can disappear on their own; individual patients can appear transient hyperthyroidism symptoms worsening, generally temporary, very few patients appear radioactive thyroiditis. Late complications are mainly hypothyroidism, hypothyroidism is not terrible, as long as the supplementation of the appropriate amount of eugenol, you can maintain normal thyroid function.