The red-white mucosa of the gastric sinus with red predominant is a description of the state of the gastric sinus mucosa under gastroscopy, indicating inflammation of the gastric sinus mucosa, mostly non-atrophic gastritis, which may be caused by improper diet and medication, H. pylori infection, digestive reflux, etc. The cause should be diagnosed and treated after detection of H. pylori and gastroscopy. Common causes and treatment 1, improper diet and medication: long-term consumption of hard and rough, spicy and cold irritating food, alcohol abuse, high salt diet or long-term use of non-steroidal anti-inflammatory drugs may cause chronic non-atrophic gastritis, the appearance of red and white mucosa of the gastric sinus, pay attention to adjusting diet and lifestyle habits, eat more fresh vegetables and fruits, avoid drinking alcohol and eating spicy diet, maintain a good state of mind and adequate 2, H. pylori infection: if infected with H. pylori, may also damage the gastric mucosa caused by chronic non-atrophic gastritis, the appearance of red and white gastric sinus mucosa performance, can do carbon 13, 14 breath test to confirm the diagnosis, the treatment is mostly quadruple therapy to eradicate H. pylori, namely a PPI + 2 antibiotics + a bismuth agent, the course of 10-14 days; 3, digestive reflux: if bile, pancreatic juice or intestinal fluid reflux Pancreatic or intestinal fluid reflux to the stomach, so that the gastric mucosa was damaged by digestive juices, can cause chronic non-atrophic gastritis, can have heartburn, acid reflux, belching, nausea, loss of appetite and other symptoms, drug therapy optional acid suppressants, mucosal protective agents and gastrointestinal dynamics drugs, etc., can be selected according to the condition of the eradication of H. pylori treatment, daily attention to control smoking to avoid inducing reflux.