Taking Si Jun Zi Tang for diarrhea may be caused by incorrect medication, overdose of medication, or medication that is too cold. Therefore, to take Sijunzi soup need to consult a physician, to avoid taking privately, if the diarrhea is more serious, you need to consult a doctor in a timely manner. 1. The medicine is not right: Sijunzi soup is a tonic, the main treatment of spleen and stomach qi deficiency, symptoms of low voice, less food and loose stools (feces sparse and not shaped), tongue pale moss white, pulse is weak and slow. If you do not have the above symptoms after taking the medicine is prone to the wrong situation, diarrhea may occur. 2. Drug overdose: if you take too much Sijunzi soup, aggravate the burden on the stomach and intestines, the deficiency is not complementary, diarrhea is likely to occur. 3. Drugs too cold: If the temperature is too cold when taking Si Jun Zi Tang, resulting in stimulation of the spleen and stomach, thus appearing to cause diarrhea.