Hemorrhagic Stroke

Hemorrhagic Stroke results from a weakened vessel that ruptures and bleeds into the surrounding brain. The blood compresses the surrounding brain tissue.

There are two types of hemorrhagic strokes

  1. Subarachnoid hemorrhage.
  2. Intracerebral hemorrhage.

Subarachnoid hemorrhage (SAH)

It occurs when a blood vessel on the surface of the brain ruptures and bleeds into the space between the brain and the skull.


Intracerebral hemorrhage (ICH)

It occurs when a blood vessel bleeds into the tissue deep within the brain.

Hemorrhagic stroke accounts for about 13 percent of stroke cases.

There are two types of weakened blood vessels usually cause hemorrhagic stroke.

  1. Aneurysms
  2. Arteriovenous malformations (AVMs).

Aneurysm

It is a ballooning of a weakened region of a blood vessel. If left untreated, the aneurysm continues to weaken until it ruptures and bleeds into the brain. Learn more about cerebral aneurysm.
 

Arteriovenous malformation (AVM)

It is a cluster of abnormally formed blood vessels. Any one of these vessels can rupture, also causing bleeding into the brain. Learn more about AVM.