A large stomach after eating is a normal phenomenon, because food digestion and absorption need a process, and the stomach will be large because the food has not been effectively decomposed in the stomach and intestines just after eating. In addition to this normal phenomenon, other situations cannot be ruled out: firstly, people with spleen deficiency do not have the means to expel the waste gas from their bodies quickly, which will lead to the waste gas remaining in the body and the stomach will become large. Secondly, the stomach is very big after eating and hormone secretion related, people in different age, hormone secretion level is not the same, and hormones mostly act on the waist and abdomen, after eating endocrine disruption, the stomach will become big. Finally, after eating a large stomach and mental stress, if the patient is too much pressure, will make the metabolism is affected, coupled with the usual lack of exercise, gastrointestinal function will be affected stomach will become larger.