The six thyroid tests are usually available to check for hypothyroidism. Hypothyroidism is a generalized hypometabolic syndrome caused by hypothyroid hormonemia or thyroid hormone resistance due to various reasons. In mild cases, there are no specific symptoms, and with the development of the disease, symptoms such as chills, weight gain, constipation, etc. can occur, and serious cases can lead to mucous edema coma. The six thyroid tests are mainly used to check the thyroid function, which generally include free triiodothyronine (FT3), free tetraiodothyronine (FT4), thyroid stimulating hormone (TSH), thyroglobulin (Tg), thyroglobulin antibody and thyroid peroxidase antibody (TPOAb). The diagnosis of hypothyroidism is made if the test reveals an elevated TSH and decreased FT3 and FT4, with or without elevated TPOAb. Therefore, the six items of thyroid function can generally check hypothyroidism. In addition, it is recommended that patients go to regular hospitals and under the correct guidance of the doctor for the six tests for hypothyroidism.