1.What is reflux esophagitis? Reflux esophagitis is a disorder of upper gastrointestinal tract motility, a disease in which the contents of the stomach and duodenum flow back into the esophagus causing clinical symptoms and inflammation of the esophagus. It is often mistaken for gastric disease and is not treated effectively. 2.What are the main symptoms of reflux esophagitis? Heartburn, pain behind the sternum, acid reflux and regurgitation, and difficulty in swallowing. The symptoms worsen after eating and at night, seriously affecting the patient to eat and sleep, and seriously causing the patient to suffer unbearably. 3. What are the dangers of reflux esophagitis? If the patient does not undergo systemic treatment for a long time or the symptoms are not completely controlled by systemic medication, narrowing of the esophagus, ulcers, and even gastrointestinal bleeding may occur, and in serious cases, it may progress to esophageal cancer.