Ileus is a type of non-mechanical bowel obstruction. It results when peristalsis stops. Peristalsis is the wavelike contractions that help push stool through the colon and small bowel.

Small Bowel Distention
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Ileus may be caused by:

  • Abdominal surgery
  • Joint or spine surgery
  • Injury or trauma
  • Infections, such as:
  • Heart attack
  • Imbalance of electrolytes
  • Disorders that affect muscle function
  • Use of certain drugs, such as narcotic pain drugs or high blood pressure medication
  • Low blood supply to parts of the intestine