One hundred and eleven patients with antiphospholipid antibodies (aPL) were diagnosed at Mie University Hospital during the past 17 years. Two of these patients developed disseminated intravascular coagulation (DIC). The first patient twice developed DIC complicated by pancreatitis and pregnancy, while in the second case, no specific causative complications for DIC were identified. The details of these cases imply that aPL is associated with DIC and/or is a potent triggering factor for DIC.