What's wrong with not defecating?

If you do not pay attention to diet, often eat very greasy food and spicy food, and do not develop good bowel habits, the probability of suffering from constipation is relatively large, so it will affect normal defecation, patients can not defecate for many days, each time defecation is also very laborious. Also consider the cause of intestinal obstruction, intestinal obstruction will affect intestinal exhaust and defecation, there will be obvious abdominal pain symptoms.