This is almost always a benign problem and is frequently associated with Irritable Bowel Syndrome.  Some individuals who have put on a significant amount of weight in the past year or so may experience bloating after eating since the increased amount of intraabdominal fat leaves less room for the stomach and intestine to expand to accommodate a meal.  Occasionally, bloating may be from more serious causes such as a blockage in the intestine or trouble adjacent to the intestine that may be pressing on the bowel and compressing it.  An abdominal ultrasound and possibly some form of scoping may be necessary to rule out a serious cause.

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