Gastric sinus mucosa is congested and edematous, reddish-white and florid considering gastrointestinal diseases such as gastritis or gastric ulcer. 1. Gastritis: It is inflammation of the mucous membrane of the gastric sinus caused by stress, non-steroidal anti-inflammatory drugs such as aspirin, Helicobacter pylori infection or bad dietary habits. Gastroscopy shows that the mucous membrane of the gastric sinus is congested and edematous with red and white. 2. Gastric ulcer: Gastric ulcer refers to ulcers occurring in the gastric angle, gastric sinus, cardia and other parts of the stomach, also caused by stress, non-steroidal anti-inflammatory drugs, such as aspirin, Helicobacter pylori infection, or poor dietary habits. Gastroscopic manifestations are not only mucosal congestion and edema, red and white, and florid, but also inflammatory cell tissue infiltration and scattered erosive elevations. If the results of gastroscopy are abnormal, it is recommended to consult a doctor in a timely manner to clarify the condition with the help of specialists, and to carry out targeted treatment or therapy in accordance with the principle of early detection, early diagnosis and early treatment, so as not to delay the development of the condition.