Can cause nausea and vomiting after eating more reasons, such as dietary factors, digestive system diseases and mental and psychological state and other factors, it is recommended to clarify the specific causes, dietary regimen, supplemented by drug therapy, usually improve the symptoms. First, dietary factors: 1, alcoholism: nausea and vomiting after meals due to drinking is a more common situation, when the body consumes a large amount of alcohol, alcohol can stimulate the gastrointestinal tract and brain, resulting in patients with nausea, vomiting performance. If you drink too much alcohol, you can eat some fruits or desserts, these foods contain a lot of fructose, which can accelerate the oxidation of ethanol to ease the feeling of vomiting; 2, food poisoning: when food poisoning occurs, the common performance of patients is nausea, vomiting, if the patient has a history of unclean diet or history of eating unknown plants and animals, you need to go to the hospital in a timely manner, the common first aid methods for gastric lavage, vomiting, enemas and other ways. 3, bad diet structure: consuming too much meat or more acidic food will stimulate the gastrointestinal tract, the performance of nausea and vomiting, nausea and discomfort can mostly be relieved after vomiting; 4, bad eating habits: overeating, exercise immediately after meals, hot and cold alternating diet and other bad eating habits can also lead to nausea and vomiting after meals, but most of them are transient, and can be relieved by appropriate changes in eating habits. Second, the pregnancy reaction: when women are pregnant, the more common pregnancy reaction is nausea and vomiting. For pregnant mothers who have a reaction to pregnancy vomiting, it is recommended to relax, do not force themselves to eat excessively, can eat less and more meals, and follow the doctor’s advice to take some vitamins, can play a certain role in relieving pregnancy vomiting. Third, digestive system diseases: such as reflux esophagitis, chronic gastritis, gastric ulcer, gastric cancer and other diseases, when patients eat, due to food irritation or food obstruction, resulting in stomach spasms, food upward, nausea and vomiting feelings. Generally, after vomiting, the nausea can be relieved, but it is necessary to go to the hospital in time to receive drug treatment or surgery. Fourth, mental and psychological factors: when the meal encountered some stressful events, resulting in a short period of emotional instability, or long-term stress, excessive tension and anxiety can cause gastrointestinal spasms, and then manifested as nausea and vomiting. It is suggested that when patients feel nauseous and want to vomit, they should take a proper rest and calm down their emotions to get some relief. Other situations: cancer patients undergoing radiotherapy, inhaling certain doses of anesthetics, having a heart attack, suddenly smelling a strong odor or seeing an exciting image after a meal, etc. can also lead to nausea and vomiting after meals. If the symptoms are more serious and cause strong discomfort, it is recommended to go to the hospital in time to identify the cause and treat the symptoms.