Fear of cold and chills, and unformed stools are related to spleen yang deficiency or kidney yang insufficiency, and can be treated with medicines such as Radix Rehmanniae Medica Pills or Si Shen Pills respectively. 1. Spleen yang deficiency: Due to insufficient spleen yang and loss of warmth and transportation, resulting in the internalization of yin and cold, symptoms such as loose stools (thin and unshaped feces), cold pain in the epigastrium (cold pain in the stomach and abdomen), fatigue (lack of mental energy), tiredness, and yellowish color are mainly due to deficiency of cold in the middle jiao, and the symptoms of deficiency of cold in the middle jiao are mainly due to insufficiency of spleen yang. 2. Kidney-Yang deficiency: Due to kidney-Yang deficiency and failure of the vital fire (the body’s kidney-Yang is weak, and the function of warming and promoting the operation of qi and blood is reduced), the lower jiao is not warmed and warmed, resulting in symptoms of lower jiao deficiency and coldness such as coldness of the body, cold limbs, lumbar and knee soreness and tenderness, umbilical cord and abdominal pain before dawn, and intestinal sounding and diarrhea, etc. For the treatment of these symptoms, the Four Spirits Pill can be used to warm up the kidneys to help the yang and to stop diarrhea by fixing the diarrhea. Those who have the above symptoms should consult a doctor in time and use the above medicines under the guidance of a professional doctor, do not take medicines on your own to avoid damage to the body.