An aneurysm is a bulging or weakened area in a blood vessel wall. Many aneurysms cause no symptoms until they become large, leak, or rupture. The warning signs depend on where the aneurysm is located.
Possible signs of a brain aneurysm
Seek emergency care immediately if you experience:
- Sudden, extremely severe headache (“worst headache of my life”)
- Nausea or vomiting with a sudden headache
- Stiff neck
- Blurred or double vision
- Sensitivity to light
- Seizures
- Loss of consciousness
- Sudden confusion or weakness
Possible signs of an abdominal aortic aneurysm
Symptoms can include:
- Deep, persistent pain in the abdomen, side, or back
- A pulsating feeling near the navel
- Sudden severe abdominal or back pain (may indicate rupture)
Possible signs of a thoracic (chest) aortic aneurysm
Symptoms can include:
- Chest pain
- Back pain
- Shortness of breath
- Hoarseness
- Difficulty swallowing
When to treat it as an emergency
Call emergency services or seek immediate medical attention if there is:
- A sudden severe headache
- Sudden chest, back, or abdominal pain that is intense or tearing
- Fainting, collapse, or loss of consciousness
- Stroke-like symptoms (facial drooping, arm weakness, speech difficulty)
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