Patients with phlegm-dampness constitution usually have the symptoms of white or yellow tongue coating, accompanied by watery tongue and teeth marks on the sides. Under normal circumstances, the tongue coating is thin white moss, the color of the tongue is light red, and the thin tongue coating is evenly distributed on the surface of the tongue. Phlegm-damp body is mostly due to the spleen deficiency can not transport water and dampness, phlegm-damp stagnation in the body, the tongue coating will show a thick and greasy state. White greasy tongue coating is cold and damp, and yellow greasy tongue coating is hot and damp. Dampness obstruction in the tongue will also show teeth marks tongue, tongue watery and so on. Patients with phlegm-damp body should pay attention to their diet and eat less fat, sweet, stimulating and greasy food. If there are uncomfortable symptoms should go to the hospital in a timely manner, under the guidance of the physician to standardize the treatment, so as not to delay the condition.