Hyperthyroidism occurs due to an inappropriately high synthesis and secretion of thyroid hormones by the thyroid gland and is characterized by a low/suppressed serum level of thyroid-stimulating hormone (TSH), associated with an increased level of peripheral hormones (total and free thyroxine-FT4 and/or total and free triiodothyronine-FT3) in the biochemically overt form of the disease, or with normal FT4 and FT3 levels in subclinical hyperthyroidism [1]. Here, TG is linked to hyperthyroidism.