Lung cancer can be divided into central lung cancer and peripheral lung cancer according to the location of occurrence. Whether or not coughing is mainly related to the location of lung cancer, as follows: 1. Peripheral lung cancer, as the name implies, grows in the peripheral third of the lung and also causes coughing, which is different from central lung cancer. Because it grows in the peripheral lung, the occupying effect and peripheral invasion are the main factors, and pain appears earlier while cough appears relatively later. The cough will be accompanied by sputum and coughing, and some of them will also combine with sputum and blood in the sputum. 2. Generally, central lung cancer has a higher chance of coughing because the tumor grows around the main bronchus, which will affect and stimulate the main bronchus, and after the main bronchus is stimulated, spasm will occur and lead to cough. The cough of central type lung cancer is mainly manifested as irritating cough, just like a foreign body growing on the bronchus, and is mainly irritating. Therefore, the cough of peripheral lung cancer is also more common but different in nature from that of central lung cancer. Patients with lung cancer who experience worsening or prolonged cough should pay attention to the disease progression and promptly go to hospital for review of CT to clarify the lesion scope.