Intracranial hematoma

Illustration showing intracranial hematoma

A blow to the head can lead to an intracranial hematoma. If the injury occurs between your brain and the outermost of three membrane layers that cover your brain (dura mater), it's known as a subdural hematoma. If blood vessels rupture between the outer surface of the dura mater and the skull, it's known as an epidural hematoma.