Hyperthyroidism is a relatively common disease in endocrinology and belongs to autoimmune diseases. At present, hyperthyroidism is mainly treated on an outpatient basis, but because of the long treatment time of hyperthyroidism, many patients in outpatient clinics are unable to follow up regularly, which may bring many adverse consequences to the treatment. The following is a brief description of hyperthyroidism. We hope that patients can have a basic understanding of hyperthyroidism and actively cooperate with their doctors in treatment. Diagnosis: It is mainly based on thyroid function tests. However, there are some related tests that need to be done after the diagnosis of hyperthyroidism: thyroid antibodies, blood work, liver function, and thyroid ultrasound. Treatment: There are three methods: medication, isotope, and surgery. Each of the three methods has its own advantages and disadvantages, which should be decided according to the patient’s specific situation and his or her wishes. Since isotopes and surgery are carried out by the respective departments, we will only emphasize the precautions for drug treatment here. 1. During the treatment period, a low iodine diet is required, mainly avoiding seafood; 2. The treatment course of hyperthyroidism is long, usually taking 2 years, during which the medication cannot be stopped without authorization; 3. Frequent follow-up is required in the early stage to monitor the adverse drug reactions, mainly blood count and liver function; and to regulate the medication dosage. Usually 3 months to control the nail function to a normal level; 4, regular review of indicators must be checked on time to ensure the safety of medication and adjust the appropriate amount of medication; 5, after normal nail function should not be immediately discontinued, the need to maintain the medication for 1 year – 2 years, before discontinuation of the TRAB still need to check whether to discontinue; 6, a major disadvantage of drug therapy is the high rate of relapse after discontinuation, the role of long-term maintenance medication is also The role of long-term maintenance medication is also to minimize recurrence; 7. It should be noted that intermittent medication will prolong the treatment time, so please pay attention to patients and make sure to take medication regularly.