The burning sensation in the stomach mostly refers to the burning sensation in the abdomen, which may be caused by dietary factors, chronic gastritis, peptic ulcer and other reasons. 1. Dietary factors: some patients eat too much spicy, irritating food in their daily lives, which may cause stimulation of the gastric mucosa, thus causing a burning sensation in the abdomen. 2. Chronic gastritis: due to frequent overeating, irregular diet, eating stimulating food, etc., the gastric mucosa caused by stimulation, the formation of chronic inflammation, may also appear abdominal burning sensation, but also may be accompanied by epigastric pain, postprandial fullness and other symptoms. 3. Peptic ulcer: gastric ulcer, duodenal ulcer patients gastrointestinal mucosal protective barrier is destroyed, gastric acid secretion is excessive, the gastrointestinal mucosal stimulation is more pronounced, thus appearing in the stomach with the burning sensation symptoms. After the appearance of the above symptoms, it is recommended to consult a doctor in a timely manner, under the guidance of a professional physician to clarify the cause of the disease, for the cause of the treatment.