An intracerebral hematoma is also called an intracranial hemorrhage, a hypertensive hemorrhage or hemorrhagic cerebrovascular disease. It can be caused by a stroke or from a traumatic event that causes bleeding within the brain due to broken blood vessels. The bleeding may occur within the brain tissues or in the spaces between the brain and its covering membranes. Bleeding can occur in all parts of the brain or only in one hemisphere or in the deeper structures of the brain.
Other causes of an intracerebral hemorrhage include an aneurysm of a blood vessel, high blood pressure bursting a blood vessel, protein deposits along the blood vessels, and a traumatic brain injury (often referred to as TBI). Blood is irritating to the brain tissue so that it swells. A mass of blood can form, known as a hematoma. Either of these things can increase the pressure on adjacent brain tissue so that it destroys that tissue, too.