We report a case of a three days old male newborn who suffered several apnea crisis. Radiologic studies revealed a pneumoperitoneum. Laparotomy proved it was caused by two intestinal perforations in the ascending colon. Histologic study showed a concomitant suppurated acute appendicitis. We discuss the case features, its possible etiopathogeny and the most frequent clinical aspects and treatment of intestinal perforation at this age.