Hyperthyroidism patients taking iodine-131 regret may be due to adverse reactions or serious sequelae, it is recommended to standardize the treatment under the guidance of a professional doctor. Iodine-131 treatment may induce adverse reactions such as thyroid crisis or hypothyroidism, which can generally be relieved by thyroid medication and glucocorticoids. However, if the destruction of thyroid tissue is too much, resulting in patients with hypothyroidism, and later due to autoimmune reactions, resulting in permanent hypothyroidism, which generally can not be recovered. Therefore, some hyperthyroid patients will regret it. However, Iodine-131 treatment is a very effective treatment, most of which are taken orally and do not require surgery. It also has a high cure rate and a low recurrence rate, and is relatively inexpensive. Iodine-131 treatment needs to be used in a standardized manner under the guidance of a doctor, and patients need to be informed of the possible adverse reactions and consequences before treatment, and can only be used after consent.