[Lower digestive hemorrhage].

The success in the management of patients with lower gastrointestinal massive bleeding depends on the best knowledge of the acute bleeding physiopathology for a better clinical management and opportune use of emergency diagnostic methods--colonoscopy, arteriography, Radionuclide. In this way, the author does a review and include his findings in patients with lower gastrointestinal massive bleeding, using the intrahemorrhagic colonoscopy.