An aneurysm is a swelling in a blood vessel. Aneurysms can occur in any artery, including the aorta. The aorta is the large blood vessel that carries blood away from the heart to the body. Most aortic aneurysms occur in the section of the aorta that passes through the lower abdomen. These are known as abdominal aortic aneurysms (AAAs - pronounced by doctors as 'triple-As').
This is a companion discussion topic for the original article at https://patient.info/heart-health/abdominal-aortic-aneurysm