What are the symptoms of Abdominal aortic aneurysm?
Last updated September 7, 2026.
**An abdominal aortic aneurysm often causes no symptoms, but you may notice belly or back pain or a pulsing feeling in your belly.** An aneurysm is a bulge in the main artery carrying blood through your abdomen. Symptoms can develop as it grows, but you cannot judge its size or safety by how you feel. Call 911 for sudden, severe belly or back pain, especially with fainting, dizziness, or clammy skin. See a clinician for recurring discomfort or a belly lump, since these symptoms have several possible causes. If you have an aneurysm, keep scheduled scans, avoid smoking, and take blood pressure medicine as prescribed.
What to do
- **Call 911:** Get emergency help for sudden, severe belly or back pain, even without other symptoms.
- **Get symptoms checked:** See a clinician if you notice recurring belly or back discomfort or a belly lump.
- **Act on new pain:** If you have a diagnosed aneurysm, seek immediate medical evaluation for new belly or back pain.
- **Ask about screening:** Discuss ultrasound screening with your clinician based on your age, smoking history, and family history.
- **Keep follow-up scans:** If you have an aneurysm, attend scheduled imaging appointments even when you feel well.
- **Reduce your risk:** Avoid smoking and take any prescribed blood pressure medicines as directed.
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