No medication is usually taken on the day of review after thyroid surgery. Usually, if the long-term medication for hyperthyroidism is ineffective, or recurs several times after stopping the medication, as well as the thyroid gland is obviously enlarged and produces compression symptoms, subtotal thyroidectomy can be carried out under the guidance of the doctor for treatment; however, the operation may lead to permanent hypoparathyroidism, and therefore, it is necessary to take thyroxine for a long period of time after the operation, regularly and in accordance with the doctor’s instructions. Thyroxine is absorbed through the gastrointestinal tract and reaches its peak concentration within a few hours, where it becomes effective and remains in the body for about 20 hours. Therefore, you should not take the medication for about 20 hours before the follow-up examination after thyroid surgery, and continue to take the medication after the examination is completed. After thyroid surgery, it is necessary to follow the doctor’s instructions to take medication regularly, as well as regular visits to the hospital for follow-up examinations.