Although the exact cause is unknown, some risk factors associated with individuals with IAA are: Tobacco Use: Cigarette smoking and other forms of tobacco use appear to increase the risk of aortic aneurysms. In addition to the damaging effects that smoking causes directly to the arteries, smoking contributes to the buildup of fatty plaques in the arteries (atherosclerosis) and high blood pressure. Smoking may also cause an aneurysm to grow faster by further damaging the aorta. Hardening of the arteries (atherosclerosis). Atherosclerosis occurs when fat and other substances build up on the lining of a blood vessel, increasing the risk of an aneurysm. Infection in the aorta (vasculitis). In rare cases, abdominal aortic aneurysm may be caused by an infection or inflammation that weakens a section of the aortic wall.
Inflammatory aortic aneurysm
Mycotic aneurysm
Thoracic aortic aneurysm
Aortic aneurysm
Syphilitic aortitis
Familial aortic dissection
Coronary artery aneurysm
Aortoiliac occlusive disease