Red and white with predominantly white color is mainly a description of the results of gastroscopy, suggesting the possibility of gastritis. Gastroscopy can be used to see the changes in the gastric mucosa, which can be used to initially determine the type of gastric lesions. Normal gastric mucosa in gastroscopy is mainly red, gastritis, especially atrophic gastritis, gastric mucosal epithelium and glandular atrophy, gastric mucosa thinning, mucosal layer thickening, can show red and white, mainly white performance. If the gastroscopy suggests that the red-white color is dominated by white, the existence of gastritis should be highly suspected, and attention should be paid to a light diet and rest. If the symptoms of gastritis are not relieved by lifestyle improvement, it is recommended to go to the hospital immediately for treatment under the professional guidance of a doctor.