Pain two months after lung nodule surgery is usually due to postoperative wound, postoperative infection, pneumothorax and other reasons. 1. Post-operative wound: after lung nodule surgery, patients usually have post-operative wound, in addition, the lung tissue inside the chest cavity may not be fully recovered, then patients will experience pain two months after surgery. 2. Post-operative infection: the weaker resistance of patients after surgery for pulmonary nodules can easily cause the symptoms of infection in pulmonary nodule wounds, which makes the recovery of wounds slower and leads to pain two months after surgery for pulmonary nodules. 3. Pneumothorax: After lung nodule surgery, the lung tissue has not fully recovered, and there will be air leakage from the lung stump, which will cause pneumothorax after surgery, resulting in pain two months after lung nodule surgery. It is recommended that patients go to the hospital for examination in time, standardize the treatment under the guidance of the doctor, and review regularly.