The following results were indicative of secondary hypothyroidism: free T3 level, 3.37 (range: 3.1–6.5) pmol/L; FT4 level, 7.65 (range: 9–23.2) pmol/L; TT3 level, 1.77 (range: 1.1–3.4) nmol/L; TT4 level, 45.68 (range: 58.0–161.0) nmol/L; TSH level, 6.65 (range: 0.25–4) uIU/mL; reverse T3 level, 0.41 (range: 0.54–1.46) nmol/L; TG level, 5.26 (range: 0–77) ng/mL; TPOAb level, 11.14 (range: 5.0–34.0) IU/mL; TRAb level, 0.30 (range: 0.3–1.75) IU/L; and TGAb level, 26.58 (range: 10.0–115.0) IU/mL. This evidence concerns the gene TG and hypothyroidism.