A hole in the lung may be caused by the following diseases: a. Tuberculosis appears as a hole in the lung, and the patient will be accompanied by symptoms of tuberculosis toxicity such as low fever, weakness, night sweats, and emaciation, etc. The detection of antacid bacilli in sputum is the main basis for confirming the diagnosis of active tuberculosis. After the diagnosis of pulmonary tuberculosis is confirmed, systematic anti-tuberculosis treatment should be carried out. Lung tumors can also appear as cavities in the lungs, which can be clearly diagnosed after bronchoscopic puncture biopsy, and after the diagnosis of lung malignancy, surgery, radiotherapy, chemotherapy, target cell drug therapy, etc. can be considered according to the condition. Third, lung abscess can appear as intrapulmonary cavity, and after the diagnosis of lung abscess is confirmed, active anti-infection treatment should be given, and attention should be paid to the drainage of sputum, and interventional or surgical treatment can be considered if necessary.