Heavy dampness is characterized by white, thick and greasy tongue coating and teeth marks on both sides of the tongue. Dampness is mainly caused by the weakness of the spleen and the stomach, and the water cannot be properly transported and transformed. Usually, the tongue coating of patients with heavy dampness will appear white and moist, white and thick tongue coating phenomenon, accompanied by white tongue, tongue body fat, accompanied by teeth indentation on both sides of the phenomenon. In addition, if the patient’s dampness is heavy and there is heat at the same time, the tongue coating at this time may also be yellow and greasy moss. If the patient has the above tongue coating, it is recommended to go to the regular hospital in time, under the guidance of a professional doctor’s diagnosis and treatment, do not take medication, in order to avoid adverse consequences.