Gastric leukoplakia is a kind of gastric mucous membrane damage, and the main causes include food irritation, chronic gastric diseases or tumor lesions. 1. Food stimulation: long-term stimulation of high liquor, spicy food, too cold or too hot food can cause gastric mucosal damage, resulting in gastric mucosal keratinization, scattered white spots and white spots. 2. Chronic gastric diseases: chronic gastritis, gastric ulcer, gastric adenomatous enteritis and other diseases can cause gastric mucous membrane damage due to continuous stimulation, resulting in gastric mucous membrane redness and whiteness, flattening of folds, and in severe cases, scattered white patches can be seen. 3. Tumor lesions: stomach tumor lesions can cause gastric mucosal injury, when the lesions are mild, the mucosa appears grayish gray-red or irregular white spots, and there may be lump formation. If there is white spot on the gastric mucosa, you should go to the regular hospital for medical treatment as soon as possible, so as to avoid delaying the condition.