γγIn my clinical work, I am often asked by patients or their families, “Doctor, why do I need bronchoscopy? Or they may ask me if I can stand it. In response to these questions, I expect that other doctors will also encounter them. Therefore, I am going to list the indications of electronic bronchoscopy as follows for those who are interested in knowing more about it.γγ1, X-ray chest film or lung CT suggests patients with occupying lesions (masses) in the lungs; pulmonary atelectasis; obstructive pneumonia; 2, sputum exfoliative cytology examination suspects or clearly has tumor cells, X-ray chest film or lung CT does not find abnormalities, in order to search for lesion sites; 3, persistent, irritating cough, hemoptysis or blood in the sputum; unexplained restricted croup; 4, infectious lung disease The acquisition of deep specimens of infectious diseases of the lung; removal of secretions and sputum plugs from the tracheobronchi; diagnosis of suspected bronchial tuberculosis or pulmonary tuberculosis; 5. Diffuse or interstitial lung disease (pneumoconiosis; alveolar protein deposition, Wegener’s granulomatosis; idiopathic interstitial fibrosis, etc.) when the diagnosis cannot be confirmed, aided by bronchoscopic biopsy or lavage; 6. Foreign bodies in the trachea and bronchi; 7. Inhalation burns Patients to understand the airway situation; 8, guided tracheal intubation; 9, tumor patients with a clear diagnosis, but need to understand the stage and the scope of local infiltration; 10, other (such as: chest trauma or auxiliary diagnosis and treatment in surgery) If the patient has any of the above indications can be done directly electronic bronchoscopy? The above indications cannot be directly examined. It is required that the patient has stable vital signs, can tolerate the examination, is psychologically prepared, avoids fear, and has no abnormalities in blood routine, coagulation function, ECG, blood pressure, blood sugar, etc.