Peripheral circulation refers to the movement of blood through the arteries, veins, and capillaries that supply the arms, legs, hands, and feet. Healthy peripheral circulation is essential for delivering oxygen and nutrients to body tissues while removing waste products. Poor circulation may lead to symptoms such as numbness, cold extremities, and slow-healing wounds. Common causes include diabetes, peripheral artery disease, smoking, and a sedentary lifestyle. Early diagnosis and appropriate treatment can help restore healthy blood flow and reduce the risk of complications.