Cold hands in boys may be related to spleen yang deficiency, kidney yang deficiency or blood deficiency, and need to be combined with other symptoms to make a judgment. According to Chinese medicine, the spleen has the function of transporting water and liquids, and when spleen yang is deficient, the spleen’s transport function is affected, resulting in the body’s water and dampness not being able to drain out of the body, and the hands not being able to be warmed, resulting in the symptom of cold hands. Spleen Yang deficiency is often accompanied by symptoms such as loss of appetite, abdominal pain and diarrhea, and lethargy (tiredness and fatigue). When kidney yang is deficient, yang qi is insufficient, the warming effect on the body is weakened, and there will also be cold hands, in addition, accompanied by chills, cold pain in the waist and knees, dizziness, tinnitus and other symptoms. Blood has the role of moisturizing and nourishing, in the blood deficiency, blood can not moisturize the limbs, will be manifested as cold hands, may also be accompanied by pale, dizziness, insomnia and other symptoms. Therefore, it is difficult to judge the significance of only the symptom of cold hands, and it is recommended to consult a traditional Chinese medicine practitioner to identify the symptoms in conjunction with the physical condition.