Most people with brain aneurysms do not experience any symptoms prior to the onset of the rupture. The rupture occurs suddenly. Up to 40% of the people experience ‘sentinel headaches’ days to weeks before the rupture and these are thought to be ‘warning leak symptoms’. At the time of aneurysm rupture, the following may occur:
(Any of these symptoms are very serious, and emergency medical attention should be sought immediately.)
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