The clinical symptoms of residual gastritis are similar to those of chronic gastritis in general, with patients mostly presenting with vague pain in the upper abdomen, bloating, acid reflux, belching, early satiety, indigestion, and loss of appetite. Most of the clinical symptoms of residual gastritis are not specific, and the inflammation of the mucosa of the residual stomach is only found during the review of electronic gastroscopy. In the treatment of the same chronic gastritis, the main treatment is the use of acid suppressants combined with gastric mucosal protective agents. Symptomatic drugs can also be added according to clinical symptoms, such as drugs to help digestion or drugs to reduce abdominal distension. For patients with residual gastritis, it is necessary to pay attention to a light diet, quit smoking and alcohol, and to review electronic gastroscopy when necessary.