Whether the current treatment of subclinical hyperthyroidism requires medication is as follows: 1. Taking medication: Although the symptoms are mild, there are clinical manifestations, such as fear of heat and heartbeat, but the symptoms are not very heavy. As long as clinical symptoms appear, some experts believe that a small amount of thyroid medication can be taken to regulate the condition, which can return to normal after a period of time. If the thyroid data is also normal and clinical symptoms do not appear, the medication can be discontinued. 2. No medication needed: Although the data indicates the presence of subclinical hyperthyroidism, there are no symptoms, and the patient does not feel, or is uncomfortable, and there are blood test results of clinical hyperthyroidism, the medication can not be applied in this case, and some experts also believe that there is no need to apply medication. Patients are advised to review their results regularly, at intervals, to see if the results are rising or falling, i.e. if they become clinically hyperthyroid, or if they are normal.