In the group of subjects with hyperthyroidism (subclinical + clinical hyperthyroidism), no significant correlation was found between the MDSS and TSH (r = 0.009, p = 0.955), fT3 (r = 0.170, p = 0.275), fT4 (r = 0.043, p = 0.779), Tg (r = −0.296, p = 0.095), TgAb (rS = 0.146, p = 0.344), or TPOAb values (rS = −0.046, p = 0.766). This evidence concerns the gene TG and hyperthyroidism.