Foreign body sensation in the pharynx can be caused by many reasons, such as bad habits, inflammatory stimulation, swelling, systemic diseases and so on. 1. Bad habits: long-term late night work and rest irregular, prefer heavy food, can cause throat irritation, showing a foreign body sensation in the throat, throat dryness, itching and other symptoms. 2. Inflammatory stimulation: pharyngitis, tonsillitis, laryngitis and other diseases can show a foreign body sensation in the throat, except rhinitis, sinusitis due to secretion reflux, can also show a foreign body sensation in the throat. 3. Swellings: benign or malignant swellings in the tonsils, pharynx, hypopharynx and other locations can manifest the phenomenon of foreign body sensation in the pharynx. 4. Systemic diseases: diabetes, hypertension, gastric ulcer, reflux gastritis, duodenal ulcer and other diseases can also show the phenomenon of foreign body sensation in the pharynx. Foreign body sensation in the pharynx has a very many reasons, after the emergence of symptoms, it is recommended to go to the hospital in a timely manner to improve the examination, in accordance with the doctor’s instructions to take standardized treatment, not to ignore the symptoms, to take it lightly.