An intracerebral hemorrhage is bleeding in the brain caused by the rupture of a blood vessel within the brain. These injuries occur after a trauma literally tears axons in the brain's white matter. Axons are the connections that carry electrical impulses, or messages, from the neurons in the brain to the rest of the body. When this connection is sheared, serious brain damage can result because the neurons can no longer communicate.
Internal bleeding can occur in any part of the brain. The bleeding may be isolated to part of one hemisphere, called a lobar intracerebral hemorrhage, or the bleeding may occur in other brain structures, such as the thalamus, basal ganglia, pons, or cerebellum.