The diagnosis of hyperthyroidism is usually confirmed by high T3 and T4 in thyroid function. Other indicators of thyroid function, such as TSH, TgAb, TPOAb, etc., can assist in the diagnosis or differential diagnosis of the cause of hyperthyroidism. Hyperthyroidism is an overactive thyroid gland. Laboratory tests are generally based on elevated T3 and T4, and other indicators of thyroid function, such as TSH, TgAb, and TPOAb, may assist in the diagnosis of the cause of hyperthyroidism. Patients with hyperthyroidism may experience fever, weight loss, menstrual disorders, diarrhea, increased appetite, irritability, palpitations, chest tightness, insomnia, and hand tremors. Treatment of hyperthyroidism mainly includes anti-thyroid drugs such as methimazole and propylthiouracil, as well as radioactive iodine and surgery. Patients with hyperthyroidism should go to the hospital in time, standardize the treatment under the guidance of the doctor, and review the thyroid function on a regular basis.