The common sequelae after thyroid surgery are mainly the following: a. Numbness and twitching of the limbs. If the blood supply to the parathyroid glands is damaged or the parathyroid glands are removed during thyroid surgery, hypocalcemic twitching occurs after surgery, at which time oral calcium gluconate needs to be taken as soon as possible to avoid repeated twitching. Second, hoarseness. If the laryngeal recurrent nerve is damaged during thyroid surgery, patients may experience hoarse voice symptoms of different degrees. If the laryngeal nerve is compressed by a local hematoma, most patients can gradually recover from the hoarseness after 2-3 months when the local hematoma is completely absorbed and the pressure on the laryngeal nerve is lifted. If the recurrent laryngeal nerve is inadvertently severed, the patient will experience permanent hoarseness. Third, dyspnea, mostly seen in the incision after surgery with a large amount of blood accumulation and exudate compression to the trachea, causing obvious breathing difficulties for patients, at this time, it is necessary to open the incision as soon as possible, remove the accumulated blood and fluid, and improve the symptoms of dyspnea.