It is a collection of blood leaking completely out of an artery or vein, but confined next to the vessel by the surrounding tissue. (religion.blogs.cnn.com)
When she got out of and back into box more liquid with blood leaking out. (1800petmeds.com)
Dengue hemorrhagic fever occurs when blood leaks from blood vessels into other parts of the body, which can lead to failure of the circulatory system, shock and possibly death, without prompt treatment. (sciencedaily.com)