A stroke, also known as a cerebrovascular accident (CVA), occurs when the blood supply to part of the brain is interrupted or severely reduced, depriving brain tissue of oxygen and nutrients. Within minutes, brain cells begin to die. Strokes are medical emergencies, and prompt treatment is crucial. Early action can reduce brain damage and other complications.

There are two main types of strokes: ischemic stroke, which is caused by a blockage in an artery, and hemorrhagic stroke, which occurs when a blood vessel bursts. Understanding the type of stroke is critical for proper treatment.