Maintenance and precautions after thyroidectomy are as follows: 1. Regularly recheck thyroid function: including T3, T4, TSH three indicators, if thyroid function is still hypothyroid, you should take thyroid hormone tablets, or eat more kelp, nori and other foods with high iodine content; 2. Wound treatment: the stitches are usually removed 5 days after surgery, do not tilt your head back after the stitches are removed to prevent the incision from pulling apart. During the healing process, the surrounding skin is prone to numbness and itching, so avoid scratching with your hands to prevent tissue proliferation, leading to scar formation; 3, drug taking: patients with total thyroidectomy need to take thyroid hormone tablets for life, and adjust the drug dose according to the thyroid function index at any time until normal. The specific medication should be combined with the clinical situation and guided by the doctor’s interview.