Diagnostic criteria for disseminated intravascular coagulation occurring in severe liver failure were reviewed by analyzing 11 pediatric cases. In this series, intravascular coagulation was often latent, but became overt following inconsiderate administration of procoagulant concentrates. Exchange-transfusion of infusion of fresh-frozen plasma, with or without addition of heparin, appeared to be the best mode for correcting potential bleeding tendencies.