Vomiting after eating is associated with pharyngitis, gastritis, pancreatitis, cholecystitis and other diseases, and women should also be alert to pregnancy. Patients with pharyngitis have a relatively sensitive throat, and food can cause irritation to the throat when eating and drinking, causing nausea and vomiting. In patients with gastritis, not only is the gastric mucosa relatively sensitive, but there is also insufficient secretion of digestive juices. Because food cannot be digested and emptied in time, post-meal nausea and vomiting may occur. In case of excessive intake of fatty foods, pancreatic fluid is needed for digestion. Once pancreatitis strikes, pancreatic secretion is affected, so nausea and vomiting occur. During the onset of cholecystitis, the patient will not be able to digest and break down the food because of insufficient secretion of digestive enzymes, so it is accompanied by nausea and vomiting. In early pregnancy, women experience nausea during meals, especially in the morning, because of the disruption of hormone secretion in the body, which affects the gastrointestinal system to some extent.