Regarding the HT group, the most common presentation was hair loss, followed by fatigue, the mean ± SD TSH serum concentration among them was 27.6 ± 22.5 uIU/L (normal: 0.5–4.3 uIU/ml), Free T3 was 2.8 ± 0.9 (normal: 0.9 to 2.8 pg/mL), while freeT4 was 3.5 ± 6.9 (normal: 0.73–1.43 ng/dL), the mean ± SD of anti TPO among patients with Hashimoto’s thyroiditis was 292.6 ± 296.2 (normal: <34 IU/mL), and the mean of anti-TG was 201.7 ± 76.9 (normal: <155 IU/mL). The gene discussed is TG; the disease is Hashimoto thyroiditis.