Hyperthyroidism is currently treated in three main ways. Internal medication treatment, iodine 131 nuclear medicine treatment, and surgical treatment. The course of internal treatment is currently set at 1.5 to 2 years, with a low cure rate and a tendency to relapse when the medication is discontinued, so some patients take medication well beyond this period. Patients with relatively mild disease, female patients with hyperthyroidism combined with pregnancy, younger patients or patients who do not want to be treated by other methods are usually selected. Some drug-related side effects may also occur in those who are treated with medication, and regular blood sampling and monitoring is required. Internal medicine treatment for those with more severe goiter is also unsatisfactory, and it is generally difficult to restore the enlarged thyroid gland to its pre-morbid state. Iodine 131 treatment is equivalent to internal surgery. Iodine 131 is ingested into the body and taken up by the thyroid gland, and the nucleophile that stays in the thyroid gland gradually destroys the thyroid gland by releasing radiation, eventually achieving the goal of treatment. The effect usually starts in one month, reaches its peak in 4 to 6 months, and can level out its final effect in one year at the latest. The cure rate can be more than 85%, and the reduction of the original enlarged thyroid gland will be very satisfactory for those who are effective. But then comes hypothyroidism, the incidence of which can be more than 50%. In addition, women should not have children for one year after medication. Hypothyroidism can be treated with thyroxine replacement therapy, which basically has no effect on daily life and fertility, but may require lifelong medication. Suitable patients are generally those who are more severely ill, intolerant or unwilling to use antithyroid medication, poorly treated by internal medicine, relapsing after surgical treatment, and older. Patients selected for surgical treatment are mostly those with a large thyroid gland, suspected thyroid tumor or goiter with symptoms of pressure, and who have not recovered from years of medical treatment. The surgical cure rate can reach 90%, but the shortcomings are the surgical scar in front of the neck, the damage to the parathyroid glands during surgery can cause convulsions, and the nerve damage can cause hoarseness or loss of voice, and a surgeon skilled in surgery is needed to reduce the incidence of the latter two. The prerequisite for surgery is that the thyroid function must be controlled by internal medicine to normal range before surgery. As for the cost, it depends on the treatment method you choose.