Aortic aneurysm is a silent killer affecting many in the US. It is a bulge in the aorta, the body's largest artery. It often shows no symptoms until rupture. Men over 65, especially smokers, are at high risk. Screening is vital for early detection. Treatment options include surgery and less invasive procedures. Lifestyle changes can lower risk.Aortic aneurysm is a silent killer affecting many in the US. It is a bulge in the aorta, the body's largest artery. It often shows no symptoms until rupture. Men over 65, especially smokers, are at high risk. Screening is vital for early detection. Treatment options include surgery and less invasive procedures. Lifestyle changes can lower risk.