TG and hypothyroidism: Zhang et al discovered that Tg levels rise during pregnancy, highlighting the importance of considering the influence of pregnancy when using Tg as a biomarker for iodine status.13 Stagnaro-Green’s investigation found that the occurrence of postpartum thyroiditis ranged from 11 to 16.7%.14 This is in keeping with the result of this study identifying more participants with hypothyroidism.