Whether the mediastinal airway shift to the left side after lung nodule surgery is normal is related to whether the affected side is left or right, such as left-sided lesions are generally normal; such as right-sided lesions are not normal. 1. Left-sided lesions: Lung nodule surgery should generally clarify the nature of the nodule, the degree of differentiation and infiltration, and lymph node enlargement, etc., so as to carry out thoracoscopic lobectomy and lymph node dissection or total resection of the left lung plus lymph node dissection. After the left lobectomy, the healthy side of the lung will have volume expansion due to compensation, which will lead to the left displacement of the mediastinal airway; after the left lung total resection, the left thoracic cavity is not fixed, causing the left displacement of the mediastinal airway. 2. Right-side lesions: right-side lesions, after right lobectomy or right total lung resection plus lymph node dissection, the mediastinal airways are displaced to the left, which may be caused by pneumothorax after the operation, resulting in excessive pressure in the right thoracic cavity and compression of the mediastinum to the left, often accompanied by shortness of breath, dyspnea and other symptoms. After lung nodule surgery, patients should pay attention to balanced nutrition, reasonable diet, avoiding exertion, staying up late, etc.. Avoid eating stimulating or greasy food and smoking and drinking, usually should also drink more water, more vitamins, strengthen exercise, enhance the body’s immunity. It is recommended that patients develop good living habits to promote postoperative recovery, and at the same time, go to the hospital regularly for review, and consult the doctor at any time if there are any uncomfortable symptoms.