Intestinal pseudoobstruction (IPO) refers to a medical condition in which the intestines function abnormally. There are several synonyms for IPO, including colonic pseudo-obstruction, paralytic ileus, and Ogilvie's syndrome. These terms all describe the same condition where the muscles of the intestines don't function properly, leading to bowel obstruction symptoms such as nausea, abdominal pain, bloating, and constipation. While the exact cause of IPO is not always known, it can result from nerve or muscle damage, certain medications or medical procedures, and digestive disorders such as Crohn's disease. Treatment options depend on the severity of the condition and may include diet changes, medications, and surgery.