Phlegm-dampness is a kind of Chinese medicine disease or pathology product, usually the patient can see the tongue body fat, tongue coating white greasy and other manifestations. Phlegm-dampness is mostly caused by the patient being in a humid environment, ingesting cold food, or the spleen and stomach dysfunction, which makes it difficult to transport water-dampness and other reasons. Usually, the patient’s tongue is identified as fat, white and greasy, or slippery, and there are often teeth marks in rows on the side of the tongue. It is worth noting that a single tongue image can not diagnose phlegm-dampness, need to be combined with other symptoms of comprehensive diagnosis. The tongue is larger than normal tongue, even stretching the tongue full of mouth, or there are teeth marks, called fat tongue, mostly due to water-drinking phlegm-dampness blockage. Excessive moisture on the tongue surface, stretching the tongue, touching the slippery, called slippery moss, for the water-dampness of the performance of the evil gathering, the main phlegm (water metabolism disorders of the formation of pathological products), water-dampness. Moss particles delicate and dense, wipe the not go, scrape the not come off, such as covering a layer of greasy mucus, known as “greasy moss”, more trapped in the spleen is not healthy, dampness and turbidity, yang qi by the inhibition of yin and caused by phlegm, dampness and turbidity, and other certificates. Usually, people with phlegm-dampness are also prone to obesity, yellowish and dark complexion, drowsiness, pale lips and mouth, cold hands and feet, moist and slippery pulse, chest tightness, drowsiness, frequent bowel movements and other symptoms, which affects the quality of life and health. Patients with phlegm-dampness are advised to consult a doctor in time and actively cooperate with the doctor for treatment, so as to alleviate the uncomfortable symptoms.