There is always a foreign body sensation in the throat that requires vigilance against chronic pharyngitis, chronic tonsillitis, reflux pharyngitis and other diseases. 1. Chronic pharyngitis: chronic pharyngitis is mostly caused by repeated episodes of acute pharyngitis, but also may be related to anemia, dyspepsia, pharyngeal reflux and other factors, the patient will appear in the throat with a foreign body sensation, may be accompanied by itchy sensation, burning sensation, irritating cough and other symptoms. 2. Chronic tonsillitis: chronic tonsillitis may be caused by streptococcus and staphylococcus infections, or it may be related to its own perverse reaction, with dry throat, foreign body sensation, itching, irritating cough and other symptoms in the intervals between attacks. 3. Reflux pharyngitis: stomach contents reflux to the throat, stimulate the mucous membrane of the throat, will produce a foreign body sensation in the throat. Diseases such as pharyngeal tumors can also cause a foreign body sensation in the throat. It is recommended that patients go to the hospital for a clear diagnosis and standardized treatment.