Drinking soy milk diarrhea may be caused by intolerance to soy protein, if there is no other uncomfortable reaction can adjust the diet structure, change the diet habits and adjust the intestinal flora, etc., through the adjustment of the diet, diarrhea will be significantly improved. It may also be due to gastrointestinal dysfunction or functional dyspepsia, which can be treated with oral bifidobacteria and other interventions, or with Chinese herbal medicine, such as Ginseng and Atractylodesis. If accompanied by fever, nausea and vomiting, abdominal pain, etc., may be soy milk unhygienic caused by inflammatory stimulation of the intestinal tract, treatment requires anti-inflammatory rehydration to adjust the intestinal flora and other treatment. If recurrent, it is recommended to check and deal with the treatment in the regular hospital.