Poor blood circulation is the failure of blood to circulate properly in the arteries and veins, resulting in insufficient blood supply to local organs or impaired reflux, thus causing a series of symptoms. Symptoms of poor blood circulation include two major categories: symptoms of poor arterial circulation and symptoms of poor venous circulation, in which poor arterial blood circulation will lead to insufficient blood supply to organs at the distal end of the arteries, and the most common is insufficient blood supply to the peripheral extremities. For example, diabetic patients, due to vascular lesions, often easily lead to insufficient blood supply to the distal extremities, appearing on one side of the skin cold, but also the dorsal foot artery pulsation disappears, and in severe cases, distal toe necrosis occurs, and often requires surgical excision treatment. And poor venous return, common in the lower limbs after venous thrombosis, the patient appeared on one side of the limb numbness, swelling, skin temperature increase symptoms, often need to apply thrombolytic drugs treatment.