Chronic intestinal pseudo-obstruction (CIPO) is a rare disease characterized by repetitive episodes or continuous symptoms of bowel obstruction when no blockage exists. Problems with nerves, muscles, or interstitial cells of Cajal (the cells that set the pace of intestinal contractions) prevent normal contractions and cause problems with the movement of food, fluid, and air through the intestines. The most common symptoms are abdominal swelling or bloating (distention), vomiting, abdominal pain, failure to thrive, diarrhea, constipation, feeding intolerance and urinary symptoms. CIPO can occur in people of any age. It may be primary or secondary. Primary or idiopathic (where the cause is unknown) CIPO occurs by itself. Secondary CIPO develops as a complication of another medical condition. In some people with CIPO, the condition is caused by variations affecting the FLNA or ACTG2 gene. Before making the diagnosis other conditions with similar symptoms should be ruled out.