Aneurysm: Signs You Shouldn’t Ignore
An aneurysm is a weakened area in the wall of a blood vessel that bulges outward. Many aneurysms cause no symptoms until they become large or rupture, which is why recognizing warning signs and managing risk factors are important.
A ruptured aneurysm is a medical emergency and requires immediate care.
Possible warning signs of an aneurysm
1. Sudden, severe headache
- A sudden “worst headache of your life” can be a warning sign of a brain aneurysm rupture.
- It may come with nausea, vomiting, neck stiffness, or loss of consciousness.
2. Vision changes
- Blurred or double vision
- Loss of vision
- A drooping eyelid or enlarged pupil (in some brain aneurysms)
3. Sudden weakness, numbness, or trouble speaking
These symptoms can resemble a stroke and may occur if an aneurysm affects brain circulation.
4. Neck pain or stiffness
- Especially when combined with a sudden severe headache.
5. Chest or upper back pain
- Aneurysms involving the aorta (the body’s largest artery) may cause deep, severe pain in the chest or back.
6. Abdominal or back pain
- An abdominal aortic aneurysm may cause a deep, persistent pain in the abdomen or lower back.
7. A pulsating feeling in the abdomen
- Some people notice a pulsing sensation near the belly button, especially with larger abdominal aneurysms.
8. Shortness of breath or difficulty swallowing
- Large aneurysms in the chest can sometimes press on nearby structures.
Emergency warning signs — seek help immediately
Call emergency services if someone has:
- Sudden severe headache
- Fainting or collapse
- New weakness on one side of the body
- Trouble speaking
- Sudden severe chest, back, or abdominal pain
- Signs of shock (pale, sweaty, rapid heartbeat, confusion)
Who may be at higher risk?
Risk can be increased by:
- High blood pressure
- Smoking
- Older age
- Family history of aneurysms
- Certain inherited conditions affecting connective tissue
- High cholesterol and vascular disease
