The specific reasons for the sudden appearance of regurgitation and vomiting are as follows: First, organic diseases: It is necessary to exclude organic diseases, conduct gastroscopy and other related examinations to understand whether there is acute and chronic gastritis, gastric ulcer and gastric cancer, etc., and give causal treatment. Secondly, non-organic diseases: it depends on whether there is irregular diet, staying up late, excessive fatigue, stressful life and work, alcoholism and taking certain drugs, etc. Third, early pregnancy reaction: for women of childbearing age, it is important to know whether there is a pregnancy reaction. Fourth, neurological factors: patients with neurosis will have sudden nausea, vomiting and other symptoms, for different causes to give the appropriate treatment. In daily life, we should learn to decompress ourselves, avoid the intake of spicy and stimulating food, avoid overeating, avoid strong tea, coffee and other stimulating food, eat less and more, chew slowly, and exercise appropriately to enhance physical fitness.