Sudden throat like choking may be caused by chronic pharyngitis, chronic tonsillitis and reflux pharyngitis. 1. Chronic pharyngitis: usually chronic pharyngitis can be caused by bacteria, indigestion, long-term excessive smoking and alcoholism, allergies and other factors, the patient may have a dry throat, sore throat, dry cough, foreign body sensation in the throat and other symptoms, which may also be manifested as a sudden choking phenomenon in the throat. 2. Chronic tonsillitis: Usually, the cause of chronic tonsillitis is related to pathogen infection, low immunity, etc. The symptoms are discomfort in the throat, foreign body sensation in the throat, difficulty in breathing, etc. The patient may also have the phenomenon of sudden choking in the throat. 3. Reflux pharyngitis: the cause of reflux pharyngitis is still unclear, may be caused by obesity, irritable bowel syndrome, gastroesophageal reflux disease and other factors, the patient may appear throat discomfort, hoarseness, foreign body sensation in the throat and other symptoms, but also may be manifested as a sudden phenomenon of choking in the throat. When the throat is suddenly like choking, it is recommended that patients actively seek medical attention to clarify the cause of the disease and then carry out regular treatment.