Foreign body sensation in the throat may be due to the presence of chronic pharyngitis, gastroesophageal reflux disease, laryngeal cancer and other diseases. 1. Chronic pharyngitis: the cause of this disease is more complex, mostly considered to be related to environmental, bacterial, occupational and other factors, chronic pharyngitis can also be induced by long-term tobacco and alcohol overdose, allergies, etc. Patients often experience dry throat, sore throat, foreign body sensation in the throat, dry cough and other symptoms. Patients often appear dry throat, sore throat, foreign body sensation in the throat, dry cough and other symptoms, some patients may also be accompanied by mild pain, burning sensation, dryness and so on. 2. Gastroesophageal Reflux Disease (GERD): It is usually caused by the damage of anti-reflux structure and function, the decrease of esophageal mucosal resistance, the decrease of esophageal clearance, etc., and it is also related to mental and psychological factors. Patients often have symptoms of heartburn and reflux, and some of them may also have chest pain, epigastric pain, belching and other symptoms, which may be accompanied by foreign body sensation if stimulated to the larynx. 3. Laryngeal cancer: There is no exact cause for this disease, which is usually related to viral infection, sex hormone level, pre-cancerous lesions, some hereditary diseases, tobacco and alcohol stimulation, lack of trace elements and other factors. Patients often have hoarseness, foreign body sensation in the throat, pain, cough and other symptoms, which may be accompanied by blood in sputum and dyspnea, etc. Mental and psychological factors may also cause laryngeal cancer. Psychological factors can also appear in the throat foreign body sensation, should consult a doctor in time to find out the cause of the disease, and follow the doctor’s instructions reasonable treatment.