Which headache presentation requires urgent evaluation to rule out meningitis or hemorrhage?

• A. Headache relieved by rest.
• B. New-onset severe headache with fever and neck stiffness.
• C. Intermittent mild headache.
• D. Headache during exercise.

Answer: (B)

A new, sudden, severe headache with fever and neck stiffness signals potential meningitis or a brain bleed, both of which can deteriorate rapidly. Fever plus neck stiffness points to meningeal irritation, a hallmark of meningitis, while the abrupt, worst‑case‑scenario nature of the headache raises concern for a hemorrhagic event like subarachnoid hemorrhage. Because these conditions are time-sensitive and treatable when caught early, this presentation requires urgent evaluation with prompt imaging and, after safety is confirmed, lumbar puncture and initiation of appropriate therapy. In contrast, headaches that are relieved by rest, are mild and intermittent, or occur with exercise are less suggestive of life-threatening intracranial disease and do not carry the same immediate risk.