Foreign body sensation in the throat after eating may be caused by chronic pharyngitis, reflux esophagitis and esophageal cancer. 1. Chronic pharyngitis: if excessive smoking and drinking, consuming spicy and stimulating food or long-term exposure to harmful gases, patients will have a foreign body sensation after eating, often with symptoms such as sore throat, dry and itchy throat and cough. 2. Reflux esophagitis: due to the relaxation at the cardia opening, which causes gastric acid to easily reflux to the esophagus through the stomach, it will damage the mucous membrane of the esophagus and cause inflammatory reaction. Patients often have the discomfort symptoms of acid reflux and heartburn, and also produce obvious foreign body sensation when swallowing. 3. Esophageal cancer: This disease is mainly related to diet, living habits, precancerous diseases, infection, heredity and other factors, and patients will have a foreign body sensation in the throat after eating, and patients mainly manifest progressive dysphagia, reflux, pain and other symptoms. There may also be other reasons such as gastritis, mental and psychological factors, etc. It is recommended that patients go to the hospital in time, and under the diagnosis of the doctor, take targeted treatment according to the specific condition of the patient.