Oesophageal mucosal edema and congestion is caused by esophagitis. How can esophagitis be prevented to avoid esophageal mucosal edema and congestion? Only by grasping how to prevent esophagitis can we help patients to actively control it. In addition to active treatment, patients with esophagitis should pay more attention to the diet regimen in daily life. The gastroenterology experts introduced that diet plays a key role in the treatment of patients with esophagitis, therefore, patients in daily life when treating esophagitis, must cooperate with the diet, so that the effect of half the effort. Once you suffer from the disease, you must go to a regular hospital in time to receive gastrointestinal examination and professional treatment, prolonged delay can lead to reflux esophagitis, esophageal stenosis, ulcers, perforation, bleeding, etc., seriously endangering human health. If esophagitis is not treated in time, it can produce malignant changes, so patients with esophagitis should be treated in time. We have all heard of esophagitis, but most people have an effective understanding of esophagitis. Esophagitis is a common disease in clinical practice. The improvement of people’s living standard and the increase of work and life pressure make the incidence of esophagitis higher and higher, which seriously affects the normal working life of esophagus. Knowing the early symptoms and manifestations of esophagitis, we can take targeted preventive and therapeutic measures to better control the disease and let the patients recover earlier. These factors make the incidence of esophagitis higher and higher, which seriously affects the normal working life.