Spleen and stomach are connected by meridians, forming an exterior-interior relationship. The relationship between the stomach and the spleen is "spleen regulates body fluid for the stomach", * * * can complete the digestion and absorption of diet and its subtle distribution, thus nourishing the whole body, so the spleen and stomach are called "the foundation of the day after tomorrow". Because the spleen and stomach are interrelated in physiology and affect each other in pathology. For example, if the spleen is wet and sleepy, and its transport is neglected, and the clear qi does not rise, it will affect the acceptance and health of the stomach and may cause anorexia, vomiting, nausea, abdominal distension and other symptoms. On the other hand, if eating disorders, food accumulation in the upper abdomen, stomach disharmony and decline, can also affect the spleen, abdominal distension and diarrhea.