The cause of cold hands and feet in winter may be weather factors, their own physical factors. 1. Weather factors: usually when the natural temperature decreases, it will lead to the body’s own yang qi deficiency, thus appearing in the body of yang deficiency, symptoms of cold hands and feet, fear of cold, pale or gray-black, mental fatigue, swelling and so on. 2. own body factors: when the patient’s body is thin, the body fat is insufficient, it is easy to cause the phenomenon of cold hands and feet. There are also some patients who are weak and cold, themselves have cold, the drop in external temperature will make the patient appear cold hands and feet phenomenon. There are many other reasons for cold hands and feet in winter, it is recommended that patients consult a doctor in a timely manner, and under the guidance of the doctor to carry out regular treatment, do not blindly deal with their own.