Cold feet may indicate a disease of yang deficiency or physiological factors. 1. Yang deficiency: mostly seen in kidney yang deficiency, usually seen in congenital underdevelopment, older, have a long illness of the population, this foot cold will be accompanied by lumbar and knee soreness, frequent urination, urination, long, afraid of cold, men will appear sexual dysfunction and so on performance. 2. Physiological factors: For example, in winter when the weather is cold, wearing thin can lead to cold hands and feet, this situation should pay attention to warmth, more exercise, more exercise, to increase the body’s ability to resist cold. There may be other reasons for cold feet, it is recommended to consult a hospital in a timely manner, by the Chinese medicine practitioner to identify and treat, do not self-medication, to avoid adverse consequences to the body.