Paralytic ileus (intestinal pseudo-obstruction) is a clinical condition caused by autonomic dysregulation. Acute paralytic ileus which can develop following surgery, takes the name chronic pseudo-obstruction if the clinical findings recur or become continuous. Atoni-intestinal motor activity disorder is the basic pathology of the disease. Among the diseases that cause this autonomic imbalance, the most frequently seen are trauma, electrolyte imbalance, bacterial or viral gastroenteritis, surgical procedures and mesentery ischemia. The most common symptoms are abdominal pain, abdominal distension, vomiting, gas, and reduced fecal output. In diagnostic evaluation the first step is abdominal radiography taken while the patient is standing. In this paper, two cases that were hospitalized due to acute gastroenteritis and who developed paralytic ileus during follow-up are presented.