After thyroidectomy, if patients develop hypothyroidism they need to take thyroxine tablets for maintenance treatment. The thyroid gland is the only organ that synthesizes thyroxine, which is one of the hormones that maintains normal metabolism in the body. After the thyroid gland is removed there is a lack of thyroxine in the body and there is a risk of hypothyroidism, which requires lifelong maintenance treatment with thyroxine tablets. The dosage of thyroxine tablets needs to be adjusted according to the results of the patient’s thyroid function test. If the test results show that there is too much thyroxine in the body after taking Thyroid Surgery, the dosage needs to be reduced, and conversely thyroxine needs to be increased.