There is something blocking the trachea of the throat, clinically there may be the following reasons: First, it is a foreign body in the laryngotrachea, this condition is clinically available, for example, the patient eats fish, bones, eating dough and so on causing foreign body blocking in the throat, the patient may feel a little suffocating feeling. If the foreign body falls into the trachea, the patient may have coughing, choking, chest tightness and other discomfort, but in this case, the patient should have a clear history of foreign body inhalation or history of accidental choking, clinically by doing electronic laryngoscopy or through other examinations such as CT can determine the presence or absence. Second, the patient has something in the throat, such as a huge epiglottis cyst, which blocks the entrance to the larynx and restricts the patient’s ventilation and breathing, or there are diseases such as acute epiglottitis with a short history, and the patient has a feeling of blockage in the throat and difficulty in breathing. If the above examinations, such as electronic laryngoscopy, C T of the throat and CT of the lungs, do not reveal any disease, it is possible that the condition is triggered by the patient’s psychological effect and psychological factors.