High free T3 and T4 should be noted whether combined with hyperthyroidism, if combined with hyperthyroidism, TSH should be reduced. If combined with hyperthyroidism, the patient will have palpitations, fear of heat, excessive sweating, excessive food and hunger, and increased frequency of stools, etc. The patient should be treated symptomatically, such as controlling the heart rate, and can choose antithyroid medication, such as methimazole or propylthiouracil. Before choosing antithyroid drugs, it is necessary to improve the examination to clarify whether it is due to hyperthyroidism. Because diseases such as subacute thyroiditis and Hashimoto’s thyroiditis can also show changes in hyperthyroidism indicators or combine with symptoms of hypermetabolism, it is important to complete the examination as soon as possible to clarify whether there is a combination of hyperthyroidism. If there is hyperthyroidism, only then can you choose anti-thyroid drug treatment.