Spleen deficiency is the main cause of frequent diarrhea, but diarrhea can also be caused by other reasons, such as kidney yang deficiency (deficiency of yang qi in the kidneys), liver qi stagnation (poor transport of qi and blood in the liver, emotional depression) and so on. Diarrhea is a common clinical symptom, with a significant increase in the number of stools, the main feature of thin texture, belonging to the Chinese medicine “diarrhea”, “dysentery” and other categories. Frequent diarrhea means that diarrhea occurs for a long time, mostly due to internal causes, internal injuries such as dietary disorders, emotional and emotional disharmony, excessive fatigue or prolonged illness may cause spleen deficiency and diarrhea. Because the spleen is the main transportation (spleen has the function of digesting food, absorbing food essence and water and transferring it to the whole body) diet and water, can promote food absorption and digestion, but also can absorb and transport water, so the spleen deficiency is dysfunction of transportation, affecting the digestion and absorption of food and metabolism of water, water and dampness downward seepage, affecting the function of the small intestine and large intestine, prone to diarrhea symptoms. Spleen deficiency can also be seen in poor appetite, dietary reduction, yellowish color (yellow and lusterless), fatigue (mental fatigue, physical weakness) and other symptoms. Other visceral dysfunctions, such as kidney yang deficiency, loss of warmth and nourishment of the spleen; or liver qi stagnation, cross-border injury to the spleen, can also lead to diarrhea. If the diarrhea is sudden, it is mainly caused by exogenous dampness and can be without symptoms of spleen deficiency. If diarrhea occurs, please consult a doctor for evidence-based treatment.