After thyroid surgery, laboratory tests and imaging tests are needed for review, and the specific review items should follow the doctor’s instructions. 1. Laboratory tests: the main tests are thyroid function five, serum calcium, and anti-thyroglobulin antibodies. Among them, thyroid function test includes anti-thyroid microsomal antibody test, anti-thyroglobulin antibody test, serum free triiodothyronine measurement, serum free thyroid stimulating hormone measurement, serum free thyroxine measurement. 2. Imaging examination: including bone scan, thyroid color ultrasound. Among them, thyroid ultrasound is mainly to check the structure and function of the thyroid gland, observe whether there is recurrence after surgery, whether the malignant tumor tissues are removed cleanly, and whether there is any reduction of lymph nodes around the thyroid gland. Bone scan mainly checks whether the patient has bone metastasis after surgery. It is recommended that post-surgery thyroid patients should follow the doctor’s instructions to review and improve the above checkups for the next step of treatment and observation.