The symptoms of tracheal obstruction depend largely on the extent to which the trachea is obstructed. Tracheal obstruction is usually caused by inhalation of foreign bodies or conditions such as bronchial tuberculosis or bronchial tumors. It usually shows symptoms such as severe cough, fever, chest tightness, shortness of breath, dyspnea and respiratory failure, or even coma and death. Bronchial foreign body caused by trachea blockage, the onset of more sudden, such as choking, choking and other conditions leading to trachea blockage, manifested as a sudden feeling of suffocation, cough, shortness of breath, dyspnea and other symptoms, foreign body blockage is recommended to immediately use the Heimlich maneuver, and as soon as possible to send to the hospital. Bronchial tuberculosis caused by airway obstruction, generally manifested as hot flashes, emaciation, chest tightness, cough, blood in sputum, shortness of breath, night sweats and other symptoms. Airway obstruction caused by lung cancer can often be complicated with obstructive pulmonary atelectasis, obstructive pneumonia and other diseases, manifesting symptoms such as cough, chest tightness, chest pain, blood in sputum, dyspnea, emaciation, malnutrition and other symptoms. Once suspected of tracheal blockage, it is recommended to go to the hospital as soon as possible, under the guidance of the doctor for further examination and treatment, in order to avoid delay or aggravation of the condition, resulting in serious adverse consequences.