Endobronchial tuberculosis can cause bronchial stenosis if the lesions are severe or incompletely treated, and can lead to atelectasis or recurrent bronchopulmonary infections in severe cases. 88 Hospital Second Department of Respiratory Medicine applies bronchoscopic interventional techniques to remove the lesions under bronchoscopy, injecting tuberculosis drugs locally or instilling tuberculosis gel drugs, and using bronchoscopically guided high-pressure balloon dilation for scar endobronchial tuberculosis, which can significantly relieve Bronchial stenosis is significantly relieved, and the occurrence of serious complications is greatly reduced.