Esophagitis can be detected by e-gastroscopy, which can visualize the location of inflammation in the esophagus, the extent of the inflammation, and the severity of the inflammation. If there is a special disease, it can also be necessary to carry out gastroscopic clamping mucosal biopsy sent to pathology biopsy or microscopic treatment surgery. Electronic gastroscopy can also see the gastric cavity, duodenum at the same time, such as gastric mucosa whether there are lesions, ulcers, erosion, swelling. The gastroscopic presentation of esophagitis is congestion and edema of the esophageal mucosa, which may be accompanied by striated or punctate erosions. Most cases of esophagitis are due to bile reflux and are treated with acid-suppressing drugs in combination with gastrointestinal stimulants, for which a specialist should be consulted.