Cutting off the thyroid gland may cause hypothyroidism, which may be manifested by symptoms such as fear of cold, slow movement and mental depression. Long-term oral medication is needed to supplement the thyroid hormone levels in the blood to maintain a stable level of thyroid hormone will not cause significant adverse effects on the body. The thyroid gland is an important organ that secretes thyroid hormones. After the thyroid gland is surgically removed, the secretion of thyroid hormones decreases, i.e., hypothyroidism, which may be manifested as fear of cold, slow movements, depression, fatigue, drowsiness, weight gain, etc. The symptoms that occur after the thyroid gland is removed are: fear of cold, slow movements, depression, fatigue, drowsiness, and weight gain. Patients with hypothyroidism after thyroid removal need to take thyroid hormone supplements such as levothyroxine sodium to maintain stable blood levels of thyroid hormone, and to undergo regular checkups to adjust the dosage in a timely manner. After thyroid removal, it is recommended to have regular checkups and take medication as prescribed by the doctor.