Eighty-eight patients with perforations of the gastrointestinal tract in infancy and childhood, excluding those caused by appendicitis, are presented. Fifty-five patients were four weeks of age or younger. Fourteen of the perforations occurred during the first year of life and 19 occurred between one and 15 years of age. The locations of perforations by order of frequency were the ileum, rectosigmoid, stomach and duodenum. The causes in order of frequency were necrotizing enterocolitis, ulcers, unknown causes, Hirschsprung's disease, atresia of the small intestine, volvulus, trauma, gastroschisis and ventriculoperitoneal shunts for hydrocephalus. A high index of suspicion, aided by roentgenograms, is essential for an early diagnosis. The over-all mortality was 49 of 88 patients. No reduction in mortality was observed in the last ten years, despite improved surgical techniques and better antimicrobial agents. Early recognition and rapid transport of the child to a pediatric intensive care unit with better supportive measures plus antimicrobial agents effective against both anaerobic and aerobis bacteria should reduce this high mortality.