Atherosclerosis is a specific type of arteriosclerosis.
Atherosclerosis is the buildup of fats, cholesterol, and other substances in and on your artery walls. This buildup is called plaque. The plaque can cause your arteries to narrow, blocking blood flow. The plaque can also burst, leading to a blood clot.
Although atherosclerosis is often considered a heart problem, it can affect arteries anywhere in your body. Atherosclerosis can be treated. Healthy lifestyle habits can help prevent atherosclerosis.