Thyroid nodule removal complications mainly include the following aspects: 1, postoperative dyspnea, caused by several aspects, the first intraoperative hemostasis is not secure, postoperative hemorrhage, hematoma compression of the trachea caused by dyspnea, the second long-term thyroid nodule compression of the trachea caused by tracheal softening, nodule removal after the trachea collapsed, causing dyspnea, and the third kind of surgery to do the thyroid surgery, accidentally injuring the laryngeal recurrent nerves on the sides, causing vocal cord tension, vocal folds tightly closed resulting in breathing difficulties. The third one, when doing thyroid surgery, mistakenly injured the bilateral recurrent laryngeal nerves, causing vocal cord tension, vocal folds tightly closed, resulting in dyspnea; 2, postoperative decrease in pitch and choking complications when drinking water, mainly because of the supraglottic laryngeal nerve injury; 3, hoarseness complications, most of the reasons are mistakenly injured recurrent laryngeal nerves causing hoarseness; 4, parathyroid injury, resulting in postoperative twitching, commonly known as cramping, most of which is due to the injury of parathyroid glands resulting in intractable hypocalcemia, calcium drop in blood Cramps; 5, complications of thyroid crisis, is a very critical complication, can lead to the death of the patient, complications with the hyperthyroidism patients with insufficient preoperative preparation has a lot to do; 6, other complications, including postoperative recurrence of the tumor, as well as other conditions.