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An aneurysm is a serious medical condition that occurs when part of a blood vessel wall weakens and begins to bulge outward. Some aneurysms remain small and unnoticed for years, while others can become life-threatening if they rupture.
Because symptoms are sometimes silent until an emergency happens, doctors stress the importance of recognizing possible warning signs early.
What Is an Aneurysm?
Aneurysms can develop in different parts of the body, but the most common types include:
- Brain aneurysms
- Abdominal aortic aneurysms
- Thoracic aortic aneurysms
The danger depends on the aneurysm’s size, location, and whether it leaks or ruptures.
Warning Signs of a Brain Aneurysm
A small brain aneurysm may cause no symptoms at all. However, if it leaks or ruptures, symptoms can appear suddenly and require immediate emergency care.
Possible warning signs include:
- Sudden severe headache (“the worst headache of my life”)
- Blurred or double vision
- Neck stiffness
- Nausea or vomiting
- Sensitivity to light
- Drooping eyelid
- Confusion or loss of consciousness
- Seizures
A ruptured brain aneurysm is a medical emergency.
Signs of an Abdominal Aortic Aneurysm
An abdominal aortic aneurysm affects the body’s main artery in the abdomen. Symptoms may include:
- Deep abdominal or back pain
- A pulsing feeling near the stomach area
- Sudden sharp pain in the abdomen or lower back
- Dizziness or fainting if rupture occurs
Some aneurysms are discovered accidentally during routine medical imaging because symptoms can be mild or absent early on.
Who Is More at Risk?
Risk factors may include: