http://www.intelihealth.com/IH/ihtIH?d=dmtATD&c=323719&p=~br,IHW|~st,24479|~r,WSIHW000|~b,*| "Intestinal blockages can be located in either the small intestine or large intestine. It is important to distinguish the site of obstruction, because the causes, symptoms and management of blockages differ depending on location. Overall, the most common symptoms are abdominal pain, vomiting and lack of bowel movements. The most prominent feature is typically abdominal pain, which may be episodic and "colicky." In small bowel blockages, the higher up the intestine the level of blockage, the sooner vomiting will usually occur. The location of pain is typically in the epigastric (upper middle) or umbilical (middle) regions. Pain may occur in paroxysms or waves, at 4-5 minutes intervals for high obstructions and at less frequent intervals for lower obstructions."
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