The abdomen is especially bulging after eating, in two cases: the first case is mostly seen in patients who are thin, because the stomach, small intestine and transverse colon are generally prolapsed, so after eating, most of the abdominal contents accumulate in the lower abdomen, resulting in the phenomenon of the abdomen being especially bulging, which is a normal situation. The second situation is that a mass may be found in the abdominal cavity, this time it is necessary to pay attention to the location, size, boundary and mobility of the mass, if necessary, to the hospital for examination, including gastroscopy, colonoscopy, abdominal CT examination, to clarify the nature of the mass, size and other circumstances, may require surgery to remove.