1, pneumothorax: Nuss postoperative pneumothorax can occur, the literature reported the incidence of 1.7% to 59.6%, generally is not complete expansion of the lung when suturing the incision, or due to small patients with thin chest wall gas caused by the entry of the wound. The methods of prevention are: complete expansion of the lung when closing the incision; small patients with gas gauze wound pressure coverage. 2, pleural effusion: literature reports the incidence of 1.2% ~ 56.7%, generally caused by intercostal, posterior sternum or adhesion zone exudation; also older heavy funnel chest, due to excessive pressure on the support plate, tearing intercostal caused. The vast majority of the use of hemostatic drugs, closed drainage of the chest cavity can be cured. 3, pneumonia, pulmonary atelectasis: the incidence is low, generally only prolong the hospital stay, and does not affect the prognosis. 4, support frame displacement: support frame displacement literature reports the incidence of 1.2% to 29.9%. Brace displacement is the most common cause of reoperation. It includes up and down rotation, backward slippage and left and right displacement. 5, acquired scoliosis: generally due to fear of pain protective posture. Pay attention to postoperative pain management, especially among older patients, early application of intravenous pumps for pain relief and later treatment with psychological or even oral painkillers to prevent the occurrence of acquired scoliosis. 6. Wound infection: Because the brace is located under the incision and connected to the chest cavity, especially in pediatric patients with thin chest walls, it is likely that the brace will have to be removed in case of infection. This requires intraoperative minimization of tissue damage at the incision, thorough hemostasis before suturing the incision, and application of antibiotics to prevent infection.