Sore throat after eating may be related to mucosal damage, reflux pharyngitis, esophageal cancer and other causes, which need to be differentiated and diagnosed by a doctor. 1. Damaged mucosa: Sore throat after eating may occur when the pharyngeal wall is damaged by hard or sharp substances mixed in food. 2. Reflux esophagitis: when the stomach contents mixed with stomach acid flow back into the throat after eating, it may irritate the throat and cause pain in the throat. 3. Esophageal cancer: after eating and drinking, the wall of upper esophageal cancer expands and pulls the local nerves, which may cause sore throat after eating. People with sore throat after eating should go to regular hospitals for consultation in time, clarify the cause of the disease, and carry out standardized treatment under the guidance of doctors, so as to avoid the delay of the disease from bringing bad effects to the body and extra burden to the body.