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Doctor's Urgent Warning: Seek Help for Thunderclap Headaches
5 Mar
Summary
- Thunderclap headaches strike suddenly with extreme pain at the back of the skull.
- These headaches can be a primary symptom of a ruptured brain aneurysm.
- Seek emergency medical attention immediately for severe, sudden headaches.

An urgent warning has been issued by NHS GP Dr. Amir Khan regarding thunderclap headaches, which are defined by their sudden onset and excruciating pain, often felt at the back of the skull. These headaches are a critical warning sign for a potential brain aneurysm, a condition where a blood vessel in the brain swells and can rupture.
Dr. Khan emphasized on the No Appointment Necessary podcast that such severe, sudden headaches can feel like being struck by a cricket bat and necessitate immediate emergency room visits or a call to 999. A ruptured brain aneurysm, known as a subarachnoid haemorrhage, requires urgent scans and treatment.
The NHS notes that thunderclap headaches are the main symptom of brain aneurysms, though most are small and asymptomatic. Larger aneurysms can cause symptoms like severe headache, facial drooping, weakness on one side of the body, or speech difficulties. Prompt medical evaluation is vital for any persistent or unusually severe headache.




