What’s the difference between an epidural hematoma (EDH) and a subdural hematoma?

What’s the difference between an epidural hematoma (EDH) and a subdural hematoma?

There are several differences, including:

• Location: An epidural hematoma (EDH) occurs between your skull and the outermost layer of meninges, the dura mater. A subdural hematoma occurs in the space between the dura mater and the second meninges layer, the arachnoid layer.
• Ease of diagnosis: EDHs are usually easier to diagnosis in that they are sudden and obvious and typically associated with a head fracture. Subdural hemorrhages are more difficult to identify because they may not be evident after the first or single blow to the head.
• Prevalence: Subdural hematomas are more common than EDHs.
• Death rate: The death rate is significantly higher if you have a subdural hematoma.