Fistulae arising from the intestinal tract are associated with significant morbidity and mortality rates. Most contemporary studies of fistulae report mortality rates between 6 and 20 per cent. The major causes of death in these patients are sepsis, electrolyte imbalance, and malnutrition. A total of 48 patients with either external or internal intestinal fistulae were reviewed in this study over a 5-year period at the Louisiana State University Medical Center at Shreveport. Intestinal fistulae were classified into three types, anatomic site, physiologic type, and etiology, to evaluate morbidity and mortality rates. We also attempted to evaluate the role of parenteral nutrition in this patient population, but our data were inconclusive because of the limited number of patients. There was no difference in mortality rates associated with anatomical sites. High-output fistulae were associated with a higher mortality rate compared to low-output fistulae. Fifty-six per cent of the patients achieved closure. The overall mortality rate was 21 per cent. Spontaneous closure rates were lower when compared to those in other studies. This was attributed to sepsis, malignancy, and history of previous radiation therapy. Management of intestinal fistulae includes control of sepsis, correction of electrolyte disturbances, nutritional support, and operative intervention if necessary.