As the population ages, abdominal aneurysms are expected to increase in frequency, as well as in the number of elderly patients involved in automobile trauma. Therefore, the number of incidental abdominal aortic aneurysms found in elderly trauma patients should be expected to rise. The purpose of this paper is to report two cases of ruptured abdominal aortic aneurysms found after nonassociated blunt trauma. We review the literature and discuss possible etiologic factors and management associated with this problem.