TG and thyroid nodule: The thyroid gland is a crucial endocrine organ in human, and thyroid hormones play important roles in organ development and homeostasis.16 Thyroid hormones regulate skeletal, and brain development in babies and toddlers, control acquisition of peak bone mass and influence vascular remodel in adults.17, 18, 19 Thyroid nodules are extraordinarily prevalent in the coastal areas, giving rise to the fashion of thyroid gland check‐up.