When nausea occurs after eating bananas, consider the following reasons: first, banana factor: because bananas are sweet and greasy, they may stimulate the gastric mucosa after eating, thus causing nausea, bloating and other uncomfortable symptoms. Second, gastrointestinal disease factor: patients with acute and chronic gastrointestinal diseases, such as acute and chronic gastritis, peptic ulcer, gastroesophageal reflux disease and stomach tumors, if when eating improperly can also cause stomach discomfort symptoms, it is recommended to conduct gastroscopy to clarify the cause. Third, daily habits factors: daily life often irregular diet, overeating, spicy diet, or have too much fatigue, alcohol abuse, taking certain drugs and other aspects of the impact, will also often have abdominal discomfort, symptoms aggravated after eating. Fourth, pregnancy factors: for women of childbearing age to understand whether there is an early pregnancy reaction. Fifth, psychological factors: to exclude gastrointestinal neurosis and other psychological factors caused by gastrointestinal discomfort symptoms. In daily life, we should learn to decompress ourselves, eat warm, soft, light and easily digestible food, avoid spicy, cold and irritating food intake, eat less and more meals, and avoid overeating.