If the thyroid nodules are evaluated to be benign and the thyroid gland is functioning normally, the third booster dose of the New Crown Vaccine can be given. Thyroid nodules or other thyroid disorders are not an absolute contraindication to the New Crown vaccine. If the thyroid nodule is benign or autoimmune thyroiditis after ultrasound examination, and the thyroid function is normal after thyroid function test, the third booster injection of XKV vaccine is allowed. However, if the thyroid nodule is evaluated as thyroid cancer, or if the thyroid function is abnormal and has not been adjusted to a normal level, the patient should be treated accordingly and then receive the third booster injection of the New Crown Vaccine after the condition has stabilized. However, the need for the booster shot should be determined after a comprehensive assessment by an endocrine specialist and the health and disease control authorities.