Bronchoscopic suctioning is useful, but should be performed under the supervision of a medical professional. Bronchoscopy is a technique that is placed into the patient’s lower respiratory tract through the mouth or nose to directly visualize bronchial lesions. It also has the functions of biopsy sampling, polyp removal, removal of bronchial secretions, and local medication. If there is a large amount of respiratory secretions that are difficult to remove from the bronchial tubes, and sputum aspiration from the nose or mouth can no longer achieve the purpose of complete removal, then the bronchoscope can be used to suction the airway secretions clean. Bronchoscopy is generally used for patients with chronic respiratory failure, patients with uncontrollable lung infections, and patients whose bronchial tubes are obstructed by blood seepage and airway secretion collection after lung surgery. After bronchial aspiration, it can effectively reduce the risk of bronchial infection, keep the bronchial tubes open, and greatly improve the patient’s quality of life.