Sore throat with foreign body sensation may be caused by food retention, acute and chronic pharyngolaryngitis, throat tumor and other factors. 1. Food retention: when eating, fish splinter or bone stuck in the throat area, causing irritation to the throat area, the symptom of sore throat with foreign body sensation will appear, and can not eat normally. 2. Acute and chronic pharyngitis: usually caused by bacterial or viral infection or stimulation of adverse physical and chemical factors, it will cause sore throat and foreign body sensation, which may be accompanied by hoarseness, cough, fever and other symptoms. 3. Pharyngeal tumor: for example, laryngeal cancer, hypopharyngeal cancer, etc. When the lesion continues to aggravate, it will cause sore throat with foreign body sensation, which may be accompanied by difficulty in swallowing, hoarseness and other symptoms. If the symptoms of sore throat with foreign body sensation persist or recur, it is recommended to consult a doctor in time for clear diagnosis.