What causes intestinal pseudo-obstruction?
Normally, nerves and muscles work together to produce wavelike contractions that push food through the intestines. In intestinal pseudo-obstruction, nerve or muscle problems prevent normal contractions. As a result, people with the condition have problems with the movement of food, fluid, and air through the intestines. When the cause of the nerve or muscle problems leading to intestinal pseudo-obstruction is not known, the condition is called primary or idiopathic intestinal pseudo-obstruction. If the cause is known, the condition is called secondary intestinal pseudo-obstruction.