Spleen and kidney yang deficiency is a Chinese medical term that generally refers to the time when cold is felt heavily, or when prolonged illness consumes qi and damages the yang of the spleen and kidney, or when there is prolonged diarrhea, which damages the yang of the spleen and kidney, as Chinese medicine says that the spleen is the essence of the afterlife, and the kidney is the essence of the afterlife. For example, a deficiency of spleen and kidney yang will usually cause diarrhea, intestinal dysfunction, or constipation, etc. Spleen and kidney yang deficiency will generally result in diarrhea or edema. Western medicine will generally have chronic nephritis or enteritis, etc. The symptoms include three aspects: first, if the Yang deficiency is more prevalent in the cold, if the Qi is stagnant, you can have a pale face, cold fear of cold limbs, cold hands and feet, cold pain in the abdomen, that is, the abdomen will appear cold, cold, painful symptoms. The second point is that if it affects the transportation of the spleen and stomach, loss of transportation of water and grain can lead to abdominal fullness, prolonged diarrhea and dysentery or wu shou diarrhea, and downward flow of clear grain. The third point is that if water-dampness floods, kidney-yang deficiency and loss of qi-transformation, there will be unfavorable urination, swelling of the face or limbs, or incomplete urination, frequent nocturnal urination, pale and fat tongue with teeth marks, white slippery coating, and sunken and weak pulse. Yang deficiency of the spleen and kidney is characterized by deficiency of spleen and kidney yang qi, and internal concentration of yin and cold.