Whether a pulmonary nodule causes cough should depend on the specific location and size of the nodule, as well as whether it compresses the airways and neighboring organs. Most lung nodules do not cause coughing because most of them are in the lung fields, far away from the pleura and airways, and usually do not cause coughing, do not have obvious clinical manifestations, and are usually found during physical examination. However, if the lung nodule continues to grow in size and invades the surrounding airways or pleura, etc., the symptoms of coughing will appear, which may be accompanied by coughing up sputum if it causes airway obstruction that affects the discharge of secretions. Regardless of whether the nodule is causing the cough or not, it is important to identify the nature of the nodule, clarify the cause of the cough, adopt targeted treatment, and regularly review the lung nodule to prevent deterioration.