The first thing to rule out is congenital, as well as teeth marks on the tongue after dentures are set, both of which are generally not regarded as pathologic. Pathological Chinese medicine is mainly characterized by spleen deficiency and internal storage of water-dampness (water-dampness stays in the body). A tongue with teeth marks is characterized by the presence of teeth marks on the edge of the tongue. Fatty tongue is often accompanied by teeth marks on the edge of the tongue, but there are also cases where the tongue is not fat and there are teeth marks. Tooth marks on the tongue are mostly due to deficiency of spleen qi, weakening of transportation ability, internal storage of water and dampness, and the accumulation of dampness on the tongue, which is then squeezed by the teeth. If the tongue is light red and tender with teeth marks, it belongs to spleen deficiency; if the tongue is light white with white moist moss and teeth marks, it belongs to cold and dampness trapping the spleen or water-dampness internalized in yang deficiency. Tooth marks on the tongue are often seen in spleen deficiency and internal storage of water-dampness, and the treatment mainly focuses on strengthening the spleen and resolving dampness (strengthening the spleen and getting rid of dampness). If you find tongue with teeth marks and have uncomfortable symptoms, it is recommended to go to the hospital for standardized treatment under the guidance of a professional Chinese medicine doctor, so as to avoid delaying your condition.