Arthrosclerosis is the furring-up and stiffening of the arteries. When this furring-up happens in the arteries of the legs your podiatrist or doctor may call it Peripheral Arterial Disease or PAD for short. Arteries carry the blood containing oxygen and other nutrients needed by your body. The furring-up caused by PAD reduces the flow of blood which reduces the amount of oxygen reaching your feet. As a result, your feet are more likely to need attention to keep them healthy.