Female patients go to the hospital to check the thyroid triple test, which is actually an abbreviation of the thyroid function test, usually the thyroid function includes checking the free triiodothyronine, serum total triiodothyronine, serum free thyroxine, serum total thyroxine, that is, clinically referred to as the T3, T4, free T3 and free T4, as well as TSH, and may further check the thyroid autoimmune antibodies, including TPO antibody, TG antibody, TM antibody, TR antibody, etc. Depending on the particular thyroid disease, we will also check the anti-T3, thyroid autoimmunity antibodies, including TPO antibody, TG antibody, TM antibody, TR antibody and so on. There may be further tests for thyroid autoimmune antibodies, including TPO antibodies, TG antibodies, TM antibodies, TR antibodies, etc. Depending on the particular thyroid disease, we may also check for anti-T3, thyroglobulin, etc. The most common thyroid function is the triple test, including T3, T4 and TSH, which is the most basic reflection of the human body’s thyroid secretion ability, as well as hyperthyroidism, hypothyroidism, subclinical hyperthyroidism and subclinical hypothyroidism. Therefore, it is important to check this combination, rather than one of the indicators, in order to avoid laboratory errors that may affect the judgment of the results.