There is no such thing as “whether it is better to take medicine or iodine 131 treatment for hyperthyroidism”, the two treatments have their own indications, side effects, etc., which need to be combined with the specific conditions of the patient to choose the most suitable treatment for themselves under the guidance of the doctor. The treatments for hyperthyroidism include medication, iodine 131 treatment and surgery. Among them, drug treatment is mainly the use of anti-thyroid drugs, such as propylthiouracil, etc. It is suitable for patients with mild to moderate hyperthyroidism, mild to moderate enlargement of the thyroid gland, pregnant women or patients of advanced age, etc. The side effects of the drug include allergic reaction, reduction of peripheral blood leukocytes, liver function damage, etc. The indications for iodine 131 treatment are as follows The indications for iodine 131 treatment are patients with thyroid enlargement of more than second degree, allergy to antithyroid drugs, recurrence after drug or surgical treatment, etc. Thyroid crisis, radiothyroiditis and other diseases may occur after iodine 131 treatment. Therefore, the indications for drug treatment and iodine 131 treatment are not the same, and there is no such thing as which treatment is better; patients diagnosed with hyperthyroidism should go to the hospital and ask the doctor to make a judgment based on their own situation and choose the most appropriate treatment.