What are the common complications after surgery?

1. Types of complications of neck (thyroid) surgery: thyroidectomy, subtotal thyroidectomy, subtotal thyroidectomy (hyperthyroidism), radical thyroidectomy, parathyroidectomy (hyperparathyroidism) 1, surgical death (the incidence is about 2/10000). 2. Anesthesia accidents, cardiovascular and cerebrovascular accidents, 3*, injury to cervical blood vessels during operation, leading to massive bleeding, shock and even death during operation, 4*, injury to recurrent laryngeal nerve during operation (clamping, suturing or cutting off), leading to hoarseness, choking in drinking water, dyspnea, permanent loss of function in severe cases, and even acute asphyxia due to lifelong dependence on tracheotomy for bilateral nerve injuries (the incidence rate is about 2-3%). The incidence of total thyroidectomy, hyperthyroidism and thyroid cancer surgery is high (transient patients can recover within 3 months to half a year) 5*, upper laryngeal nerve injury, which leads to choking, aspiration and pronunciation change (the incidence is about 0.5%) 6, postoperative tracheomalacia, which leads to suffocation and even death (giant goiter is easy to occur, and the generator must be cut or intubated) 7. Postoperative headache (neck hyperextension cerebral circulation disorder syndrome) is caused by surgical posture (the incidence is about 40-50%, which can be treated with symptomatic pain relief). Postoperative hypothyroidism is temporary or permanent (incidence is