Cold back and hands and feet are mostly due to cold internal obstruction, Yang Qi deficiency, Yang Yu syncope (Yang Qi does not run smoothly resulting in cold limbs) and other reasons. 1. Cold internal obstruction: due to the feeling of wind, cold and dampness, resulting in cold internal obstruction of meridians and channels, followed by the appearance of the back and hands and feet cold, may also be accompanied by limb joints, muscle soreness, pain and other symptoms. 2. Yang qi deficiency: due to prolonged illness, overwork, etc., resulting in yang qi deficiency, and yang qi deficiency can not warm the body, there can be a cold back and hands and feet, but also accompanied by cold, cold, diarrhea, abdominal pain, pallor and other symptoms. 3. Yang depression syncope: due to the invasion of external evil into the internal organs and meridians, resulting in the body of yang qi stagnation, can not reach the limbs and warm body, so cold hands and feet or even the back of the cold situation. And can also be accompanied by chest and ribs (chest and ribs part of the collective term) Department of distension and pain, epigastric distension and pain, dysentery and so on. It is recommended that people with cold back, hands and feet should consult a professional doctor.