The third injection is generally the third injection of the new coronary vaccine. Whether or not a patient with a poor thyroid gland can receive the third dose of the new crown vaccine depends on the patient’s thyroid hormone levels. If the patient’s thyroid gland is functioning normally or is stabilized after treatment, the third dose is usually allowed, but is not recommended if the thyroid hormone levels are not under effective control. If thyroid hormone levels are not effectively controlled, it is not recommended to receive the third injection. It is recommended to consult your doctor for details. If the patient’s thyroid function is normal, or if the patient has hyperthyroidism or hypothyroidism but is able to control the thyroid hormone level within a reasonable range after treatment, it is usually possible to receive the third dose of XK vaccine. If the diagnosed hyperthyroidism or hypothyroidism is not under control and the condition is still unstable, it is not recommended to receive the third dose of the vaccine. Contraindications for the new crown vaccine include uncontrolled severe chronic disease and acute exacerbation of chronic disease. Patients with thyroid disorders who require the third dose of the New Crown vaccine are advised to consult their physician before receiving the vaccine.