Lung pain should be analyzed and judged in conjunction with other accompanying symptoms. If accompanied by chills, high fever, cough, sputum and other symptoms, the possibility of lobar pneumonia is generally considered more likely. If accompanied by low afternoon fever, night sweats, lethargy, or pain when breathing, the possibility of tuberculous pleurisy is more likely to be considered. Slight pinprick pain, especially after strenuous activity, usually indicates the possibility of spontaneous pneumothorax. If it is accompanied by blood in sputum, emaciation, and enlargement of peripheral lymph nodes, the possibility of bronchopulmonary cancer should be considered. Therefore, a little pain in the lungs needs to be clarified in time by perfecting the CT examination of the lungs.