Tightness of the throat with a foreign body sensation, clinically possible causes are laryngospasm, chronic pharyngitis, acute epiglottitis, and so on. 1. Laryngospasm: this refers to the reflex spasm of the laryngeal muscle contraction and make the vocal folds partially or completely closed, thus causing the sick people to have tightness in the throat, foreign body sensation, accompanied by varying degrees of dyspnea, respiratory obstruction and so on. 2. Chronic pharyngolaryngitis: some people often inhale harmful gases or dust, chronic inflammation of the nasal cavity, sinuses, pharynx and throat leads to chronic pharyngolaryngolaryngitis, and there is diffuse congestion and swelling in the throat of the affected people, with clinical manifestations such as tightness of the throat and foreign body sensation. 3. Acute epiglottitis: swelling of the epiglottis, accompanied by dyspnea, resulting in tightness of the throat, foreign body sensation. Tightness of the throat with a foreign body sensation, it is recommended that timely hospital consultation, diagnosis and treatment.