Intracerebral haemorrhage is bleeding into the brain substance with the formation of a focal haematoma. It may rupture through the cortical surface to produce an associated "subarachnoid" haemorrhage. Alternatively, it may rupture into the ventricular system to produce an intraventricular haemorrhage.
ICH accounts for about 10% of all strokes. It is slightly more common among US blacks and individuals of Chinese and Japanese origin.
Last reviewed 01/2018