Hartford Hospital View Institution's Website 1 article published in JoVE Neuroscience Autologous Blood Injection to Model Spontaneous Intracerebral Hemorrhage in Mice Lauren H. Sansing1,2,3, Scott E. Kasner2, Louise McCullough1, Puneet Agarwal2, Frank A. Welsh4, Katalin Kariko4 1Department of Neurology, University of Connecticut Health Center, 2Department of Neurology, School of Medicine, University of Pennsylvania, 3Department of Neurosurgery, Hartford Hospital, 4Department of Neurosurgery, School of Medicine, University of Pennsylvania The autologous blood injection model of intracerebral hemorrhage in mice described in this protocol uses the double injection technique to minimize risk of blood reflux up the needle track, no anticoagulants in the pumping system, and eliminates all dead space and expandable tubing in the system.