Types of Stroke

Just as strokes have many effects, they also have many causes. Learn the various types of stroke.

Ischemic Stroke (Clots)

Occurs when a blood vessel supplying blood to the brain is obstructed. It accounts for 87 percent of all strokes.

Hemorrhagic Stroke (Bleeds)

Occurs when a weakened blood vessel ruptures. The two types of weakened blood vessels that usually cause hemorrhagic stroke are aneurysms and arteriovenous malformations (AVMs). The most common cause of hemorrhagic stroke is uncontrolled high blood pressure.

TIA (Transient Ischemic Attack)

Called a “mini stroke,” it’s caused by a serious temporary clot. This is a warning stroke and should be taken seriously.

Cryptogenic Stroke

In most cases, a stroke is caused by a blood clot that blocks the flow of blood to the brain. In some instances, despite testing, the cause of a stroke cannot be determined. A stroke of unknown cause is called a “cryptogenic stroke.” 

Brain Stem Stroke

When stroke occurs in the brain stem, it can affect both sides of the body and may leave someone in a ‘locked-in’ state. When a locked-in state occurs, the patient is generally unable to speak or move below the neck.