Hashimoto's is an autoimmune disease in which the body sees the thyroid as foreign and produces antibodies to
. Many have us have it for
years before we ever know it
, though we often have the symptoms long before thyroid blood tests even indicate an issue. The antibody tests you need are Thyroid Peroxidase Antibodies (TPOab) and Thyroglobulin Antibodies (TgAb). You need both tests, since either one can provide the diagnosis. Some people have one or the other, some have both.