Sudden, Severe Headaches: Responding to the Thunderclap

Extreme headache pain that comes on abruptly (the “thunderclap”) can signal a number of serious conditions – such as subarachnoid hemorrhage – or have a simple cause such as sexual activity or a change in medication. Neurologist Morris Levin, MD, director of the UCSF Headache Center, sorts out the diagnostics, offering the workup steps that he uses in practice and a display of what you may – or may not – see on imaging exams.


March 23, 2021

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UCSF MedConnection

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Morris Levin, MD

Morris Levin, MD

Headache and pain specialist
Director, UCSF Headache Center

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