Vomiting after eating a little is associated with gastritis, hepatitis, cholecystitis, indigestion and other factors, and women should also be alerted to the fact that they are pregnant. During an attack of gastritis, the stomach is relatively sensitive because of edema and congestion on the mucous membrane of the stomach wall. When eating food, the food can cause irritation to the mucous membrane of the stomach wall and therefore cause nausea, vomiting, etc. After the disease, not only does the transaminase enzyme rise, but also the liver’s metabolism of fat and protein foods gradually decreases, so there is a loss of appetite, and nausea and vomiting can occur when eating slightly. In patients with cholecystitis disease, when eating food, the gallbladder will be stimulated by food and contract, which will cause gallbladder spasm and affect the function of the stomach. In addition to causing pain, patients with cholecystitis will also be accompanied by nausea and vomiting. When indigestion occurs, the food in the stomach cannot be emptied in time, and the fermentation in the stomach leads to an increase in the internal pressure of the stomach, which causes many people to vomit.