Peripheral arterial disease (PAD) is a process that occludes blood flow in limb arteries, which is often asymptomatic and therefore undiagnosed in primary care. It is significantly associated with cardio- and cerebro-vascular events, reduced physical functioning, and in extreme cases, loss of limbs. It is more prevalent with increasing age, in males, in those who smoke, in those with diabetes, and in those with dyslipidaemia.