Esophagitis is a disease of the digestive system and can be treated at the Department of Gastroenterology. Generally, it requires routine examinations such as barium meals of the esophagus or endoscopy. Through the examination of the barium meal, one can observe the disordered folds of the damaged esophageal mucosa, sometimes small niches and narrowing of the esophageal lumen can be seen. Upper gastrointestinal endoscopy can reveal inflammatory changes in the esophageal mucosa. For milder cases of esophagitis, medication can be used primarily to inhibit the secretion of stomach acid and for anti-inflammatory purposes. More severe cases may require hospitalization for infusion therapy.