TgAb refers to thyroglobulin antibodies. Clinically, if TgAb is elevated a lot, it indicates that the patient has thyroid inflammation. If the thyroid gland is damaged by inflammation, the thyroglobulin is released into the bloodstream and the body produces antibodies to thyroglobulin, or TgAb. When the antibodies are elevated and thyroid function is normal, no special treatment is often given, and no medication is needed. Clinically, you only need to pay attention to regular review and try not to eat too much seafood when you eat, and to achieve an appropriate low iodine diet. If there is a problem with thyroid function, it is necessary to see a clinician to see if further medication is needed.