intracranial bleeding

Intracranial bleeding, also known as a hematoma, is a medical disorder where blood pools in tissues or spaces outside of blood vessels, typically due to a torn or cut vessel from injury or trauma. This bleeding can occur in various locations within the skull, including between the brain and its protective layers, or directly within the brain tissue itself.12

Types of intracranial bleeding include:
* Epidural hematomas: Blood collects between the skull and the dura mater, often associated with skull fractures and arterial rupture.13
* Subdural hematomas: Blood pools between the dura mater and the arachnoid mater, commonly caused by head injuries and tearing of bridging veins.21
* Subarachnoid hemorrhages: Bleeding occurs in the space between the pia mater and arachnoid mater, potentially from aneurysms or malformations.14
* Intracerebral hematomas (hemorrhagic strokes): Blood pools within the brain tissue, often linked to high blood pressure or trauma.514

These conditions can increase pressure inside the skull, compress brain tissue, and lead to serious disability or death if not treated promptly.21