Big stomach after eating is a very normal phenomenon, especially after eating, this is because the stomach has a certain diastolic capacity, can follow the volume of gastric contents and expand 3-5 times, after eating the volume of the stomach rapidly increased, the stomach is also prone to gastric distension, and food digestion and absorption need a certain amount of time, just after eating food in the gastrointestinal has not been effectively digested and absorbed, so the stomach will be very large. In general, if there are no uncomfortable symptoms, the impact on health is not significant, you can carry out small activities after meals, usually strengthen exercise to enhance the strength of the abdominal muscles, but also with the consumption of antibiotic tablets to promote gastric power to promote food digestion. Note that do not overeat for a long time to avoid triggering a series of gastrointestinal disorders, making the condition worse. However, if it is said that after eating a large stomach is very obvious, accompanied by abdominal distension and discomfort, abdominal pain, acid reflux, belching and other manifestations, then the presence of digestive system pathologies should be considered possible, common such as acute and chronic gastroenteritis, duodenal ulcer, pyloric obstruction, etc.. Patients with these diseases, after eating, due to reduced digestive function, food can not be effectively absorbed and digested, often accumulate in the patient’s gastrointestinal tract it, resulting in the stomach looks big. At this time will mostly be accompanied by some discomfort, so it is recommended that patients can go to the hospital in a timely manner if they have relevant symptoms, and under the guidance of the doctor, apply some drugs to treat the original disease and use some gastrointestinal tract power drugs to help digestion and improve the discomfort.