Hemoptysis after bronchoscopy is usually curable. Hemoptysis after bronchoscopy is generally due to the operation process damage to the mucosa of the trachea caused by the rupture of small blood vessels, most of which can be quickly recovered, generally do not need special treatment, part of the accompanying infection, need to use penicillin, cefazoxime and other antibiotics to fight infection. If there is damage to the large blood vessels, there is a large amount of hemoptysis, this time the need for drug intervention to stop bleeding. Interventions such as posterior pituitary hormone, aminocaproic acid, and white-browed snake venom hemagglutinin can be used. Severe hemoptysis requires emergency interventional embolization to stop the bleeding. Most patients will have a small amount of hemoptysis after tracheoscopy, which can be cured spontaneously, and a very small number of patients will have more severe hemoptysis. Therefore, the vital signs should be monitored for three hours after tracheoscopy. Specific medications should be administered under medical supervision.