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Brain Aneurysm

Brain Aneurysm - Symptoms


What are the symptoms?

Most people with brain aneurysm may not experience any symptom until it ruptures or becomes fairly large. Up to 40% of the people experience ‘sentinel headaches’ days to weeks before the aneurysm rupture. This is due to small ‘warning leak’ from the aneurysm.

A large aneurysm may exert pressure on a nerve or surrounding brain tissue and may cause pupillary dilatation, visual disturbance, numbness, weakness, or paralysis on one side of the face or eye pain.

At the time of aneurysm rupture, the following may occur:

  • Sudden onset of severe headache (often described as the “worst” headache of their lives)
  • Nausea and/or vomiting
  • Change in mental state or loss of consciousness
  • Seizure
  • Stiff neck
  • Sensitivity to light
  • Vision and/or speech impairment
  • Numbness and/or weakness in any part of body

(Any of these symptoms can be very serious. Emergency medical attention should be sought immediately).

Brain Aneurysm - Causes and Risk Factors

Brain Aneurysm - Preparing for surgery

Brain Aneurysm - Post-surgery care

The information provided is not intended as medical advice. Terms of use. Information provided by SingHealth

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