Small abdominal distension want to fart, there are several reasons: the most common is constipation, due to the expansion of the intestinal tube, the stool can not be effectively discharged, in the intestinal peristalsis, often want to exhaust the phenomenon. In addition, small abdominal distension and want to exhaust is due to cold, cold, after eating not easy to digest, cold, cold food, causing intestinal dysfunction, there will be intestinal flatulence, abdominal distension, there is exhaust this feeling. There are also other diseases of the intestinal tract, enteritis, intestinal spasm, intestinal obstruction, all of which will cause abdominal distension and pain, and want to have gas. In the case of intestinal obstruction, the desire to pass gas cannot be discharged, and this phenomenon exists, which can be clearly determined by abdominal examination and radiography.