It is true that chronic gastritis is very common, so people who have slight pain in the upper abdomen and poor appetite often think they have chronic gastritis. However, many diseases, whether mild or severe, have symptoms similar to gastritis. Even doctors need to carefully distinguish between them. Diseases such as various types of hepatitis, cholecystitis, gallstone disease, reflux esophagitis, ulcer disease, intestinal parasitic diseases, etc., although different from gastritis, may present with similar symptoms.