Infected aneurysms involve the aorta, visceral and peripheral arteries and are associated with a high morbidity and mortality. Prompt confirmation of the suspicion of infection, resection of all infected tissue, and prolonged antibiotic therapy based on appropriate sensitivity studies are crucial to successful management. Patients whose aortic aneurysms grew Gram negative organisms were more likely to suffer early rupture of an aortic aneurysm, and had a higher mortality. Superior mesenteric aneurysms are preferably treated by resection. Upper extremity aneurysms can often be excised without distal ischemia. Lower extremity aneurysms were more likely to require reconstruction which can be accomplished through non-infected tissue planes, preferably with autogenous tissue.