A sudden, severe headache is most suggestive of which condition?

A sudden, severe headache is most suggestive of which condition?

• A. Migraine
• B. Tension headache
• C. Subarachnoid hemorrhage
• D. Sinusitis

Answer: (C)

A sudden, severe headache that reaches its peak within seconds to a minute is a red flag for subarachnoid hemorrhage, typically from rupture of a cerebral aneurysm. This thunderclap or “worst headache of my life” presentation reflects blood rapidly entering the subarachnoid space and triggering intense pain. In contrast, migraines usually present as a throbbing, unilateral pain with factors like nausea, photophobia, or aura and tend to last hours to days. Tension-type headaches feel like a bilateral, pressing or tightening sensation with mild to moderate intensity and no abrupt onset. Sinusitis headaches produce facial pressure and pain associated with nasal congestion or other sinus symptoms, not a sudden peak in intensity. Because this symptom signals possible bleeding in the brain, it requires urgent evaluation with imaging (typically a CT scan) and prompt medical management to determine the source and secure any aneurysm if present.

A sudden, severe headache that reaches its peak within seconds to a minute is a red flag for subarachnoid hemorrhage, typically from rupture of a cerebral aneurysm. This thunderclap or “worst headache of my life” presentation reflects blood rapidly entering the subarachnoid space and triggering intense pain.

In contrast, migraines usually present as a throbbing, unilateral pain with factors like nausea, photophobia, or aura and tend to last hours to days. Tension-type headaches feel like a bilateral, pressing or tightening sensation with mild to moderate intensity and no abrupt onset. Sinusitis headaches produce facial pressure and pain associated with nasal congestion or other sinus symptoms, not a sudden peak in intensity.

Because this symptom signals possible bleeding in the brain, it requires urgent evaluation with imaging (typically a CT scan) and prompt medical management to determine the source and secure any aneurysm if present.