Which of the following is a major risk factor for intracerebral hemorrhage?

• A. Hypertension
• B. Diabetes mellitus
• C. Hyperlipidemia
• D. Smoking

Answer: (A)

High blood pressure over time damages the small arteries deep in the brain. This chronic stress leads to changes in the vessel walls (lipohyalinosis) and can form fragile Charcot-Bouchard microaneurysms. If these small vessels rupture, bleeding pours directly into brain tissue, causing an intracerebral hemorrhage. Because sustained hypertension directly weakens these deep penetrating arteries, it is the strongest and most consistent risk factor for this type of bleed. Lowering blood pressure reduces this risk.

Diabetes, hyperlipidemia, and smoking are important vascular risk factors, but they are more strongly linked to atherosclerotic processes and ischemic stroke rather than the primary mechanism driving intracerebral hemorrhage.