Lung nodule surgery for half a month, or wheezing sputum may be due to lung inflammation, lung tissue trauma, lung complications and other reasons. 1. Lung inflammation: Lung inflammation may be caused by poor postoperative care, surgical stimulation, physical condition and other reasons leading to inflammation of the patient’s lungs, the patient may cough, cough sputum, shortness of breath and other symptoms. 2. Lung tissue trauma: lung tissue trauma may be caused by surgery, infection and other reasons, the patient may cough up sputum, chest pain and other symptoms, which is generally normal. 3. Lung complications: Patients may experience symptoms such as coughing and sputum, which may be caused by postoperative lung complications, such as damaged lung organs and decreased lung function, and patients may experience chest pain, dyspnea, shortness of breath, etc. It is recommended that patients follow the instructions in the surgery. It is recommended that patients follow the doctor’s instructions for postoperative care, consult a doctor to confirm the diagnosis in time when symptoms of discomfort occur; prohibit smoking and alcohol during the recovery period, and do follow-up examinations in a timely manner.