The MOST significant risk factor for a hemorrhagic stroke is:

• A. diabetes mellitus.
• B. hypertension.
• C. heavy exertion.
• D. severe stress.

Answer: (B)

Chronic high blood pressure is the most significant risk factor for hemorrhagic stroke because it constantly stresses the walls of the brain’s small arteries. Over time this stress causes structural changes—lipohyalinosis and the formation of tiny Charcot-Bouchard microaneurysms—that weaken vessels and make them prone to rupture. When these vessels rupture, blood leaks into brain tissue, causing intracerebral hemorrhage and bleeding in deep brain regions like the basal ganglia, thalamus, pons, or cerebellum.

Diabetes tends to drive atherosclerosis and is more strongly linked to ischemic strokes, where a blocked vessel starves brain tissue of blood. Heavy exertion or acute stress aren’t as reliable or strong a predictor of hemorrhagic stroke as chronic hypertension, so they don’t carry the same risk profile.