Vomiting after eating is usually considered to be caused by indigestion due to fast eating or excessive intake of greasy, spicy or cold foods that irritate the gastrointestinal tract. Also, hormonal changes in the body during pregnancy may affect the function of the gastrointestinal tract, leading to vomiting after eating. In addition, it may also be related to reflux esophagitis, acute pancreatitis and other disease factors: 1, improper diet: often due to overeating or eating too much indigestible food, resulting in slow gastrointestinal peristalsis, vomiting caused by the stomach contents up. The usual diet should pay attention to regular rationing, light diet, each time you eat 7-8 minutes full; 2, indigestion: due to gastrointestinal dysfunction, gastric power is insufficient, so that the gastric emptying time is prolonged, and then there is indigestion, can be manifested as eating vomiting. Treatment should pay attention to eating food that strengthens the stomach and eliminates food, such as hawthorn tablets, chicken neijin, etc. Those with severe symptoms can take oral domperidone tablets, metoclopramide, stomach-healthy tablets, etc. In addition, attention should be paid to regular diet, avoid overeating, eat less and more meals, eat more easily digestible liquid diet, such as thin rice, noodles, etc.; 3. Pregnancy: In female pregnancy, due to fetal growth and development needs, the body will secrete a large amount of progesterone and estrogen. The change of hormone level in the body will stimulate the function of the digestive system and induce the symptoms of nausea and vomiting. This is a normal physiological phenomenon and generally does not require special treatment. In the diet should pay attention to eating less and more meals, avoid eating greasy, spicy and irritating food; 4, reflux esophagitis: usually caused by the violation of the esophageal mucosa by stomach acid. When eating, food will cause friction to the esophageal mucosa, while food stimulating stomach acid will also cause corrosion to the esophageal mucosa, therefore, leading to spasmodic contraction of smooth muscle in the esophageal area and decreased appetite, accompanied by nausea and vomiting. Treatment should pay attention to reduce reflux, reduce the stimulation of gastric secretions, inhibit gastric acid secretion, etc., can follow medical advice to use domperidone, itopride and other drugs; 5, acute pancreatitis: a large intake of fatty foods, as well as drinking alcohol, may lead to the secretion of pancreatic fluid, once the excretion of pancreatic fluid is obstructed, it will induce an attack of acute pancreatitis. It is manifested as severe pain in the stomach, accompanied by nausea and vomiting. Treatment should pay attention to fasting, parenteral nutrition or jejunal nutritional support, the use of drugs that inhibit pancreatic secretion and pancreatic enzyme activity, such as omeprazole, pantoprazole, etc., the use of pethidine antispasmodic and analgesic drugs to relieve pain if necessary, the use of quinolones, cephalosporins to prevent infection, and in severe cases, surgical treatment is feasible.