Thyroid nodule surgery is divided into benign and malignant tumor surgery, post-surgery dietary contraindications are as follows: 1, thyroid surgery is mostly general anesthesia, 6 hours after resuscitation of general anesthesia is generally recommended that patients eat fluid, fluid needs to be low temperature, easy to swallow, easy to digest, careful feeding to avoid choking and coughing; 2, when feeding patients, can be given a straw for patients to gently inhale, to avoid choking and coughing caused by large mouth feeding; 3. The food should be mainly high protein and easy to digest, and then gradually return to normal diet; 4. During the feeding process, try to advise patients not to drink food that is too hot or stimulating, because this may lead to choking and coughing, bleeding, and postoperative symptoms of airway compression, resulting in increased postoperative complications and poor postoperative recovery; 5. Perform a normal diet. Among the common complications after thyroid surgery are damage to the parathyroid glands and damage to the recurrent laryngeal nerve. It is possible that the hoarseness may be due to intraoperative damage to the recurrent laryngeal nerve, or that the parathyroid glands may be partially cut by mistake during surgery or the blood supply to the parathyroid glands may be temporarily inadequate after surgery, resulting in low parathyroid function and low calcium twitching.