Si Shen Wan is a traditional Chinese medicine formula with the effects of warming the kidney, warming the spleen, consolidating the intestines and stopping diarrhea, and can be used for treating Wujing Diarrhea (abdominal pain and diarrhea occurring before dawn). The main components of Si Shen Wan are nutmeg, tonic oil, schizandra, Wu Wei Zi and Cornu Cervi, which can warm the kidney, warm the spleen and stop diarrhea. The main features of the formula are warming and astringency, warming is the mainstay, focusing on treating the kidneys, and taking into account the spleen and stomach. It is clinically used for treating diarrhea caused by yang deficiency of the spleen and kidney (deficiency of yang qi in the spleen and kidney), with symptoms of intestinal tinnitus and abdominal distension, loose discharge at the fifth day of the month, poor appetite, prolonged diarrhea, lumbar and knee soreness and tenderness (a feeling of soreness and weakness of the lumbar and knee), abdominal coldness and pain, and yellowish facial and limb coldness. ,. The drug should be used under the guidance of a medical professional to avoid adverse reactions.