The blood test for hyperthyroidism is often thyroid function, including serum total T3 (TT3), total T4 (TT4), free T3 (FT3), free T4 (FT4), and thyroid stimulating hormone (TSH). High and low indicators of hyperthyroidism should be analyzed for specific causes and treated accordingly. 1. The common phenomenon of hyperthyroidism is that TSH is low while TT3, TT4, FT3, FT4 are high. Antithyroid drugs, such as methimazole, propylthiouracil, etc., should be given, and radioactive iodine therapy and surgery should be taken if necessary. 2. If TSH is low and TT3, TT4 is low and FT3, FT4 is high, it may be due to the low amount of total serum protein, such as androgens, glucocorticoids, the effect of hypoproteinemia, resulting in low TT3, TT4, should be actively treating the primary pathology, and at the same time, give antithyroid drugs and other treatments for hyperthyroidism. 3. If TSH is high and TT3, TT4, FT3, FT4 are low, it may be due to the overdose of antithyroid drugs for the treatment of hyperthyroidism, leading to pharmacological hypothyroidism, and the dosage of antithyroid drugs should be reduced; or it may be a complication of hyperthyroidism caused by radioactive iodine treatment and surgical treatment for hypothyroidism, and levothyroxine sodium tablets should be given for treatment. Hyperthyroidism blood test indicators are high and low to the hospital, under the guidance of the doctor treatment.