Whether chronic atrophic gastritis with colitis requires hospitalization depends on the severity of the disease. In general, hospitalization is not necessary, but if conservative treatment is ineffective, hospitalization for surgery is necessary. 1.Chronic atrophic gastritis is a series of chronic diseases of the digestive system caused by a variety of pathogenic factors, the main causative factor is Helicobacter pylori (HP) infection, whose chronic inflammatory stimulation can cause gastric mucosal atrophy (reduced number and function), which leads to reduced digestive function, affecting the normal physiological function of the stomach; colitis is an inflammatory lesion of the colon caused by a variety of pathogenic causes, which can also be caused by bacteria, Protozoa and other organisms. 2. For the treatment of chronic atrophic gastritis, drugs for eradicating Helicobacter pylori (HP) are preferred, such as omeprazole, amoxicillin, clarithromycin, bismuth potassium citrate, etc.; for the treatment of colitis, most of them are symptomatic treatments to promote the healing of mucous membranes and to prevent and control complications. 3. If the condition is not serious, hospitalization is usually not necessary. However, if the symptoms of the disease do not improve significantly after a long period of drug treatment, you should go to the local hospital in time to seek more specialized treatment.