🚨 Aortic Dissection: A Medical Emergency You Need to Recognize An aortic dissection happens when a tear develops in the inner layer of the aorta—the body’s largest artery. Blood can then force its way between the layers of the aortic wall, potentially reducing blood flow to vital organs or causing the aorta to rupture. Symptoms may include: ⚡ Sudden, severe chest or upper-back pain ⚡ Pain described as tearing, ripping, or stabbing ⚡ Fainting, dizziness, or extreme weakness ⚡