Subarachnoid Hemorrhage – What You Need to Know

When dealing with subarachnoid hemorrhage, bleeding into the space between the brain and its outer covering. Also known as SAH, it demands immediate medical attention because the blood can irritate brain tissue and raise pressure inside the skull.

One of the main triggers is a ruptured aneurysm, a weak spot in a blood vessel wall that balloons out over time. When that balloon bursts, blood rushes into the subarachnoid space, kicking off a cascade of problems. The sudden surge often leads to cerebral vasospasm, a narrowing of nearby arteries that can starve brain tissue of oxygen days after the bleed. Because timing matters, doctors rely on a quick CT scan as the first imaging tool; it spots fresh blood within minutes and guides emergency decisions.

Understanding the chain of events—from aneurysm rupture to vasospasm—helps you recognize why early treatment matters. Subarachnoid hemorrhage patients often need a blend of surgical clot removal, blood‑pressure control, and sometimes anticoagulant therapy to prevent further clots, all while monitoring for delayed vasospasm. Below you’ll find articles that break down risk factors, symptom checklists, imaging tips, and step‑by‑step treatment options, giving you a clear roadmap for handling this life‑threatening emergency.