A tear while in the wall of the aorta, also called an aortic dissection. This daily life-threatening condition causes bleeding into and alongside the aortic wall. Unexpected emergency surgery is necessary to prevent Loss of life. From Mayo Clinic for your inbox Sign up for totally free and stay up-to-date https://www.sgvascularctr.com/aortic-aneurysm-a-guide-to-understanding-the-risks-and-treatment-options-in-singapore/