Look at the tongue moss mainly from the thickness of the tongue moss, color, moss texture and other aspects to determine whether it belongs to the normal tongue moss. Normal people’s tongue, the tongue body fat and thin moderate, there is no cracks and teeth marks, peeling moss and other phenomena, tongue light red, tongue thin white, dry and moist moderate. If the tongue is fat, the tongue is thick, cracks or teeth marks appear, the tongue is yellow, black or purple, the tongue is dry, the tongue is peeling off, or the tongue has an abnormal sensation (burning sensation, numbness, etc.), are not normal, unhealthy performance. Observation of the tongue is an important method of diagnosis in Chinese medicine, the tongue can reflect the nature of the disease and the depth of the disease, reflecting the internal organs of the cold, heat, deficiency, solid, tongue dryness also reflects the body’s fluid surplus and deficit and the transmission and distribution of the situation, to diagnose the disease to provide an important reference information. If the patient is not feeling well, he should consult a professional Chinese medicine practitioner for diagnosis and treatment, and should not make blind diagnosis on his own in order to avoid delaying the treatment.