Common causes of sore throat from eating include food irritation, throat injury, acute tonsillitis, acute pharyngitis, and so on. 1. Food irritation: If you eat spicy and irritating foods, these foods will irritate the mucous membrane of the throat in the process of swallowing, which can lead to sore throat. 2. Throat injury: If the mucous membrane of the throat is punctured by food such as fish splinter, bone, etc., or if there is a long ulcer, stimulating the wound of the throat while eating may cause pain. 3. Acute tonsillitis: As tonsils are located at the junction of digestive and respiratory tracts, when tonsils are inflamed due to bacterial or viral infections, due to the stimulation of inflammatory factors, tonsils will be enlarged, and frequent friction and extrusion of tonsils when swallowing food during meals will cause sore throat. 4. Acute pharyngitis: If pharyngitis is caused by pathogenic infection, the pharyngeal sensory nerves in the inflammatory media infiltration of increased sensitivity, the need to swallow food, food repeatedly stimulate the mucous membrane of the pharynx, which will cause a sore throat. If you have a sore throat when eating, you should go to the regular hospital in time to find out the cause of the disease, to avoid delays in diagnosis and treatment.