The difference between chronic esophagitis and reflux esophagitis lies in the fact that the etiology, clinical symptoms and prognosis of the two diseases are different. 1. Different causes: Chronic esophagitis is a chronic disease of the esophagus caused by bad eating habits, infection after trauma to the esophagus, and various physical and chemical stimuli, etc. Reflux esophagitis is caused by excessive secretion of gastric acid and reflux, which leads to mucous membrane reflux. Reflux esophagitis is caused by excessive secretion of gastric acid and reflux, resulting in erosion and ulceration of esophageal mucosa. 2. Different clinical symptoms: patients with chronic esophagitis mostly show symptoms such as dull pain behind the sternum, burning sensation behind the sternum and slow and obstructed passage of food in the esophagus. The main clinical manifestations of reflux esophagitis are reflux and heartburn. 3. Different prognosis: The prognosis of reflux esophagitis is generally good after active treatment, and most of the patients can get a better recovery without other sequelae. The prognosis of chronic esophagitis is individualized, and the symptoms of patients can be relieved through treatment, but it is easy to recur and requires long-term medication. Patients should consult a doctor in a timely manner when they experience discomfort, complete the relevant examinations, and have the doctor provide targeted treatment according to the cause of the disease.