In general, a weak spleen and stomach has a pale tongue, white, thick and greasy moss, teeth marks, and a fat tongue. Healthy people generally have thin white moss. Weakness of the spleen and stomach is often seen in white, thick and greasy moss, because the spleen and stomach are weak and cannot transport water-dampness, and the water-dampness qi coalesces on the tongue, which is full of white moss, thick and slippery. The tongue is fat and there are teeth marks on the edge of the tongue because the spleen and stomach are weak and cannot transport water-dampness, the water stays inside and soaks up the tongue, and the fat tongue squeezes with the teeth, forming teeth marks. Weakness of the spleen and stomach can be caused by dietary factors, overwork, too much thinking, old age and weakness, and the first recovery from a serious illness. Spleen qi deficiency is the main cause of spleen and stomach weakness. The main manifestations are diarrhea, yellowish color, loss of appetite, fatigue (mental exhaustion, physical weakness), and emaciation. Treatment should be based on the principle of strengthening the spleen and promoting vital energy, and Chinese patent medicines for strengthening the spleen such as Liu Jun Zi Tang and Ginseng Ling Bai Zhu San can be chosen. Avoid greasy, cold, spicy and spicy things to stimulate the spleen and stomach. If there are related symptoms, it is recommended to consult a doctor for diagnosis and treatment, and drugs should be used under the guidance of a physician.