Whether or not a lung infection after aortic coarctation surgery is important is mainly determined by the degree of infection. Slight infection is a common postoperative complication, and is not important; obvious infection, accompanied by solid changes in the lungs as well as abnormal lung function, is an important condition that needs to be dealt with. 1. Slight intrapulmonary infection after surgery is a common phenomenon in the postoperative period, attention should be paid to the conditioning of the body to enhance physical fitness, after a small amount of medication (oral cephalexin, etc.), it can be recovered and does not matter. 2. Serious intrapulmonary infection, accompanied by solid changes in lung tissue leading to coughing, chest tightness, shortness of breath, fever, etc., will have an impact on the recovery of aortic coarctation surgery, which is a critical condition, and requires regular anti-infective treatment under the guidance of the clinician (cephalexin drip, etc.). After aortic coarctation surgery, it is necessary to pay attention to closely monitor the recovery of the operation area, the emergence of obvious chest pain, need to promptly consult a doctor for observation, after diagnosis of the condition, under the guidance of clinicians for standardized treatment.