Aortic atherosclerosis is usually not serious, but if complications occur, the situation is serious. The aorta is a large artery, and aortic stenosis due to atherosclerosis is relatively small, meaning that fewer clinical symptoms occur due to narrowing of the vessel as a result of atherosclerosis. If a rupture occurs in atherosclerotic coarctation, at this time if secondary thrombosis occurs, or secondary bleeding results after intimal tearing of the artery, it is very serious and can be life-threatening in severe cases. Therefore, the key to the seriousness of aortic atherosclerosis depends on the occurrence of complications or not.