Peripheral Artery Disease (PAD) is a common circulatory condition where narrowed arteries reduce blood flow to your limbs, most often affecting the legs. This can cause symptoms like leg pain when walking (claudication), slow-healing wounds, or in severe cases, limb loss. PAD is primarily caused by atherosclerosis, where fatty deposits build up in the artery walls, leading to restricted blood flow. Early diagnosis and treatment are crucial to preventing complications.