White-yellow, thick and greasy tongue coating with teeth marks may be caused by damp-heat of the spleen and stomach (the spleen and stomach feeling damp-heat evil qi), but the specific cause needs to be decided in combination with the patient’s other symptoms. Damp-heat in the spleen and stomach refers to the internalization of dampness and heat, the elevation of the qi in the middle jiao is out of order, and the dampness in the spleen and heat in the stomach are overflowing with each other. Symptoms include plumpness in the epigastrium (abdomen) (stomach distension and discomfort), lack of appetite, vomiting, aversion to grease, fatigue, heaviness, body heat, bitter mouth, thirst and lack of drinking, low and yellow urine, and even yellowing of the face and skin such as the color of oranges. Patients with Damp-Heat in the spleen and stomach should lead a regular life and not stay up late. Keep the living environment dry and not too humid, and pay attention to summer heat. If the tongue is white and yellow, thick and greasy, fat and tooth marks symptoms for a long time without relief or accompanied by other discomfort, timely medical care, identify the causes, targeted treatment.