According to Traditional Chinese Medicine (TCM), the Spleen and the Stomach reside in the Middle Jiao together, and they are in a relationship with each other. The stomach is responsible for receptivity (acceptance) and the spleen is responsible for transportation (the spleen has the function of digesting food, absorbing food essence and water and transferring it to the whole body). The Spleen is responsible for ascending and clearing, while the Stomach is responsible for descending and clearing. The relationship between the Spleen and Stomach is that the Spleen carries the fluids for the Stomach, and together they accomplish the digestion and absorption of food and the transmission of essence, thus nourishing the whole body. The Spleen is responsible for ascending and the Stomach is responsible for descending. The Spleen is the main ascender and can transport water and grain essence upward to the heart and lungs; the Stomach is the main descender and can move water and grain that has been putrefied (initially digested food to form food waste) downward. If the spleen qi does not rise and instead sinks, diarrhea or prolapse will occur; stomach qi does not descend and instead goes up, nausea, vomiting, eructation (hiccups) and other symptoms will occur. Because the spleen and stomach in physiological function is interconnected, so their lesions also often affect each other. If the spleen is trapped by dampness, the transportation is not in charge of its duties, and the clear qi does not rise, it can affect the stomach’s acceptance and descending role, and see nausea (no appetite, less food), vomiting, abdominal distension, etc. If the diet is not regulated, it can lead to nausea, vomiting, and abdominal distension. On the other hand, if the diet is out of order, food is stagnant in the stomach and epigastric region, and the turbid qi is not descending, it also affects the spleen’s function of ascending and transporting the clear qi, resulting in abdominal distension and diarrhea.