Distinguish between cold and dampness and kidney yang deficiency symptoms, first identify the actuality, cold and dampness for the actual evidence, kidney yang deficiency for the false evidence; and then identify the symptomatic parts of the manifestation of cold and dampness manifested as a systemic symptom, kidney yang deficiency manifested as a renal meridian related parts of the symptom. 1. Cold-dampness is divided into internal and external, both belong to the real evidence. External cold and dampness, manifested as cold (fear of cold) fever, head and body heavy (head and limb heaviness), limb pain, skin eczema, etc.; internal cold and dampness, manifested as gastric and abdominal distension, loss of appetite, nausea, diarrhea. Kidney yang deficiency manifests itself in the form of deficiency, dizziness, blanched face, fear of cold limbs, cold pain in the waist and legs, loss of libido, nocturia and other symptoms of deficiency and cold. 2. Cold and dampness stay in the internal organs, can cause different symptoms of the body, external or headache, internal cough, asthma, epigastric pain, diarrhea, vomiting, etc.; kidney yang deficiency symptoms are manifested in the lumbar and knee pain, reproductive function loss, diarrhea, finished grain is not chemical (stools in the more undigested food), the five diarrhea (pre-dawn abdominal pain want to defecate), urinate long and so on the deficiency evidence. The difference between cold-dampness and kidney yang deficiency needs to be identified by a Chinese medicine practitioner to determine the deficiency and location of the disease before treatment can be established and rationalized; it is not possible to hastily administer medication on one’s own to avoid adverse effects caused by incorrect medication.