The brain needs a constant supply of blood to work well During a stroke, blood stops flowing to part of the brain. The affected area is damaged. Its functions are harmed or even lost. Most strokes are caused by a blockage in a blood vessel that supplies the brain (ischemic stroke). They can also occur if a blood vessel in the brain breaks open (ruptures). This is a hemorrhagic stroke.
How a hemorrhagic stroke occurs
Hemorrhagic stroke occurs when a blood vessel in the brain ruptures. This lets blood spill into or build up in nearby brain tissue. The extra blood presses on those brain cells. It can damage them or even cause them to die. Other brain cells die because their normal blood supply is cut off because of high pressure in the skull.
Online Medical Reviewer: Anne Fetterman RN BSN
Online Medical Reviewer: Deepak Sudheendra MD
Online Medical Reviewer: Raymond Kent Turley BSN MSN RN
Date Last Reviewed: 04/01/2024
© 2000-2026 The StayWell Company, LLC. All rights reserved. This information is not intended as a substitute for professional medical care. Always follow your healthcare professional's instructions.
Learn More About Health Services at PIH Health
Expert care for every stage of life. Explore the comprehensive services offered at PIH Health.
Explore Services
Get Health Tips & Updates
Sign up for helpful health information, wellness tips and news from PIH Health, delivered straight to your inbox.
SubscribeRelated Articles
What Is Ischemic Stroke?
Most strokes are caused by a blockage in a blood vessel that supplies the brain. They can also occur if a blood vessel in the brain ruptures (bursts open).
What Is a TIA?
A TIA (transient ischemic attack) is an early warning that a stroke (also called a brain attack) is coming. A TIA is a temporary stroke. It causes no lasting damage. But the effects of a stroke, if it happens, can be very serious and lasting. Here are symptoms to watch for.
Hemorrhagic Stroke: Subarachnoid Hemorrhage
A hemorrhagic stroke happens when a blood vessel in the brain ruptures or leaks. A blood vessel on the surface of the brain bursts (hemorrhages). This spills blood into the surrounding tissue. This type of stroke often happens suddenly, with little warning.
Sleep/Wake Cycles
How and when you feel sleepy has to do with your sleep/wake cycles. These cycles are set off by chemicals in the brain.
Personalized Care Starts with the Right Provider
Search by specialty, location, and more.
Find A Doctor
Make an Appointment
Your health can't always wait. Schedule an appointment with a PIH Health provider.
Schedule an Appointment
Find a PIH Health Urgent Care Location
Need care today?. Find the nearest PIH Health Urgent Care location.
Find Urgent Care
