What causes peripheral arterial disease?

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    Last Updated: May 16, 2025

    Peripheral arterial disease is caused by the narrowing or blockage of arteries due to a progressive build-up of fatty plaques, a process known as atherosclerosis. This condition is influenced by genetic factors and is exacerbated by lifestyle factors such as smoking, poor diet, lack of physical activity, and excessive weight gain.

    The narrowing or blockage of arteries in peripheral arterial disease is caused by a progressive build-up of fatty plaques in the lining of the affected artery.[1] This complex process is called atherosclerosis, and it is influenced by genetics and promoted by lifestyle factors such as smoking, diet, physical inactivity, and excessive weight gain.[1]