Surgery for thyroid cancer requires removal of the thyroid gland, and the residual thyroid tissue varies depending on the procedure. Common procedures include: total bilateral thyroidectomy; thyroidectomy on one side + major thyroidectomy on the opposite side; thyroidectomy on one side + partial thyroidectomy on the opposite side; and thyroidectomy on one side + isthmus. Surgery for thyroid cancer that is less than one thyroidectomy is considered to be an incomplete surgical scope. The remaining thyroid gland will show some degree of compensation, but the ability to compensate is limited. Too little of the remaining gland will not meet the patient’s needs, even if it is compensated. Patients with papillary thyroid cancer need to take thyroxine for two purposes and functions: on the one hand, to maintain normal thyroid hormone levels in the body (supplemental dose); on the other hand, it can inhibit the body’s secretion of the thyroid stimulating hormone TSH (inhibitor volume), thus inhibiting recurrence (papillary cancer is a TSH-dependent malignancy).