The most dangerous complication of tuberculosis hemoptysis is asphyxia of the airway. This is because in the case of hemoptysis, a large amount of blood pouring into the bronchi can block the airway, affecting the patient’s oxygenation and posing a risk to life. Normally, massive hemoptysis in tuberculosis is rare and usually occurs in small amounts. In some patients with cavitary tuberculosis, there may be some blood vessels exposed in the cavity wall. If the patient coughs violently, the blood vessels can be damaged and hemoptysis can occur. When hemoptysis occurs, the patient must be given a head-down position immediately to help drain the patient. The patient’s back should be patted to stimulate the patient to cough, so that the patient can drain the blood and blood clots from the trachea as soon as possible. If necessary, the patient can be intubated or tracheotomized, or interventionally guided vascular embolization can be performed to prevent further bleeding.