The burning sensation after eating bananas may be caused by chronic gastritis and peptic ulcer. 1. Chronic gastritis: there is chronic inflammation of the gastric mucosa, gastric acid secretion is more, after eating bananas, stimulate the secretion of gastric acid increases, causing burning sensation in the stomach, acid reflux, nausea, abdominal distension and other symptoms. 2. Peptic ulcer: because the protective barrier of the gastric mucosa is destroyed, there are ulcer foci, gastric acid secretion is more, after eating bananas with high sugar content to stimulate gastric acid secretion increases, stimulating the ulcer surface to cause burning sensation, acid reflux, stomach pain, abdominal distension, nausea and other symptoms. Eating bananas after the stomach has a burning sensation, it is recommended to consult a doctor in a timely manner to identify the cause of the disease, follow the doctor’s prescription medication to avoid triggering the disease.