You will not age faster after thyroidectomy. The thyroid gland secretes thyroxine, also known as T3, T4 and TSH, in the body to adjust the body’s hormone levels. If hormone levels are monitored to be low after thyroidectomy, oral thyroxine tablets can be taken for supplementation and will need to be reviewed every 3 months in the early postoperative period. If the thyroid function decreases, it means that the oral medication is not enough, and it is necessary to continue to increase the dosage. If T3 and T4 increase, it means that the oral medication is too much, and it is necessary to reduce the dosage of medication, so that the oral medication can maintain the normal thyroid level, and there is no relationship between the thyroid function and the aging of the human body. Thyroid function has nothing to do with aging. Generally, both thyroid glands need to be removed at the same time only in the case of thyroid cancer. In the case of benign thyroid nodules, removing one side of the thyroid gland is sufficient, and the thyroid gland on the opposite side will still be able to secrete hormones to compensate for this in the time after the surgery.