Tracheoscopy rarely has long-term complications, but tracheoscopy is a traumatic examination, there may be certain complications and accidents during operation, as follows: 1, the operation process requires the use of anesthesia drugs, so there may be anesthesia reaction and drug allergy, serious cases may experience shock, as well as cardiac arrest, respiratory arrest, etc.; 2, the process of the examination requires a biopsy, which may cause bleeding of tissues, serious hemorrhage and even suffocation. Severe hemorrhage or even asphyxiation may occur, including cardiovascular and cerebrovascular accidents, as well as cardiac and respiratory arrest, cerebral hemorrhage, etc.; 3. In the operation process, it is possible to spread the infected foci of the primary infected site, and new infected foci may appear, causing damage to the surrounding tissues, or even pneumothorax. All of the above accidents may occur, but the likelihood of occurrence is relatively small. Heart rate, blood pressure, respiratory rate, blood oxygen monitoring, and routine oxygen intake will be routinely performed during the operation, and the bronchoscopy room is also equipped with tracheal intubation and resuscitation medicines and equipment.