About- Abdominal Aortic Aneurysm (AAA) is a bulge or swelling in the Aorta, the largest blood vessel that supplies blood to the body which runs from the heart down through the chest and tummy. Symptoms- Tummy pain Irregular heartbeat Lower back pain Sweaty skin Fainting Causes- Although the exact cause of Abdominal Aortic Aneurysm (AAA) is unknown, a number of factors may play roles, including: Smoking Hypertension Vascular inflammation Heredity Blood vessel diseases Specialists to visit Vascular Surgeon Cardiologist Interventional Radiologist Vascular Medicine Specialist