No. Melena; the presence of black stools often indicate upper GI bleeding. There is no physiologic mechanism of iron excretion. That means that as soon as iron is absorbed in the body, it is not normally excreted. If it is excreted however, it most likely will be lost via the sloughing of dead cells of bleeding and not in the feces. Therefore, high concentration of blood iron may cause hemosiderosis, but not melena.