Tooth-marked tongue, also known as tooth-marked tongue, refers to the impression of teeth on the edge of the tongue, which is usually associated with both heavy dampness and weakness of the spleen and stomach. A weak spleen and stomach cannot transport water in the body, which can lead to heavy dampness, and excessive dampness in the body can easily damage the spleen, which are interrelated. Spleen and stomach weakness has a wide range, including spleen qi deficiency, spleen yang deficiency, stomach yang deficiency, etc. Yang deficiency can easily lead to heavy dampness, and patients often have abdominal distension, abdominal pain, intestinal tinnitus, unformed stools, cold or swollen limbs, pale or atrophic face, white tongue coating, and a preference for warm environments, in addition to tooth-marked tongue. Both heavy dampness and weakness of the spleen and stomach are associated with dentate tongue, which is called spleen deficiency and dampness in Chinese medicine, because the tongue is edematous and enlarged, and is squeezed by teeth, leaving teeth marks on both sides of the tongue. According to the view of Chinese medicine, the tooth-marked tongue is the main cause of spleen deficiency and qi deficiency, and is subject to different illnesses according to the status of the fat, thin and tender tongue. Those with a tender tongue mostly suffer from Qi and Blood deficiency, while a fat tongue with teeth marks is a case of phlegm and damp-heat internal obstruction. In addition, the tongue with teeth marks does not necessarily mean heavy dampness or weakness of the spleen and stomach, and the tongue with teeth marks can also be seen in normal people, not necessarily suffering from a certain disease. The tongue against the teeth due to mental stress can also manifest itself as a dentate tongue, which should be distinguished by the quality of the tongue and related symptoms. If you have a long history of tooth-marked tongue, it is recommended that you go to a regular Chinese medicine hospital and seek active treatment.