The life expectancy of hyperthyroidism is between 70 and 100 years. In fact, with today’s medical level, most patients will not be affected by the treatment according to medical advice, and with the current advanced medical technology, hyperthyroidism can be cured. Hyperthyroidism is actually an overproduction of thyroid hormones in the body that leads to various symptoms, such as irritability, increased appetite, protruding eyes, mucus edema in the lower legs and even secondary hypertension, but these symptoms will be relieved after regular treatment. Regular medication should be taken strictly in accordance with medical advice. In case of intolerance to antithyroid hormone medication, radioactive iodine treatment is required if necessary. If the enlarged thyroid gland compresses the patient’s own trachea or esophagus, surgery is required, which is usually curable and does not affect one’s life expectancy.