Coughing 2 months after pulmonary nodule surgery is mainly considered to be irritation of bronchial tubes by surgical stumps, scarring, and thread foreign bodies, and the possibility of chronic inflammation in the lungs cannot be excluded. Lung nodule surgery is the removal of part of the lung tissue or lobe including the lung nodule, and the trauma to the lungs is generally greater, whether it is traditional open-heart surgery or minimally invasive thoracoscopic surgery. The lung tissue stumps are usually sutured using surgical threads or a new surgical material such as titanium clips, a material that is foreign to the lung tissue and can irritate the bronchial tubes and trigger an irritating cough. After the lung stump heals, scar tissue is formed, lung tissue compliance decreases, and the stump can also irritate the bronchial tubes, triggering a coughing response. After lung nodule surgery, poor wound healing may also trigger chronic infection and chronic inflammation in the lungs, which can irritate the bronchial tubes and trigger a cough response. Coughing after lung nodule surgery, it is recommended to seek medical attention and standardized treatment under the guidance of a medical professional.