This section covers:

What is a stroke? A stroke results when blood and oxygen flow to the brain is stopped or interrupted.

Causes and types of stroke: There are two types of stroke: ischemic and hemorrhagic.

Transient ischemic attacks (TIAs), 'Mini-strokes:' In some cases, strokes are preceded by transient ischemic attacks (TIAs) or "mini-strokes."

Risk factors and prevention: Risk factors increase your chance of having a stroke. Your doctor can help you determine your risk factors—what you can and cannot control.

Stroke warning signs, Call 911: Stroke symptoms may last a short time and disappear. They are often present when you wake up.

A stroke involves the brain (cerebral) and the blood vessels (vascular).

Source: Allina Health Patient EducationUnderstanding Stroke, fifth edition, neuro-ahc-90662
Reviewed By: Allina Health Patient Education experts
First Published: 02/01/2006
Last Reviewed: 05/01/2018