The adverse symptoms after lung nodule surgery include pneumothorax, infection and bleeding, which need timely medical treatment. 1. Pneumothorax: When patients have undergone lung nodule resection surgery, the edges of the lungs may leak, causing the lungs to be squeezed, resulting in the phenomenon of pneumothorax, which requires treatment methods such as closed chest drainage. 2. Infection: lung nodule surgery may cause pneumonia, bronchitis and other inflammatory infections, requiring anti-infection treatment. 3. Bleeding: After surgery for pulmonary nodules, blood vessels may rupture in the diseased area, resulting in bleeding, which requires timely medical treatment. Patients in the lung nodule surgery, pay attention to bed rest, avoid eating spicy and stimulating food, light diet, under the guidance of the physician to take medication, there are abnormalities in a timely manner to seek medical attention.