Skirt tongue that is, tooth mark tongue, belongs to the abnormal tongue shape, refers to the edge of the tongue body has teeth traces, like a skirt, wavy, mostly due to the tongue body is fat and oppressed by the teeth caused by pathological and physiological factors, need to clarify the specific causes of the disease, in the guidance of the doctor to carry out the corresponding treatment. 1, pathological factors: the main reasons include the tongue body blood circulation disorders, nutritional deficiencies, congenital megalencephalopathy and systemic diseases, resulting in edema of the tongue body, which leads to the emergence of teeth marks. Pathological factors: the main causes include blood circulation disorder of the tongue, malnutrition, congenital megaglossia and systemic diseases, etc., which lead to the edema and enlargement of the tongue, and the teeth press the edge of the tongue, so that teeth marks appear. Blood circulation disorder of the tongue can be improved by symptomatic treatment, and medicines can be applied to improve blood circulation under doctor’s guidance; malnutrition of the tongue can be regulated by adjusting the diet, increasing the intake of vitamins and proteins, and supplementing the nutrition; if the skirt tongue is caused by oral ulcers, it can be improved by using oral ulcer patches, etc., as well as by eating more fresh vegetables and fruits; if the oedema is caused by systemic diseases, it is recommended to actively treat the primary disease. Physiological factors: the tongue belongs to the soft tissue, with the morphology of the surrounding teeth and morphological changes, if the arch is narrower, crowded teeth, often use the tongue against the teeth, the normal edge of the tongue form a long time in contact with the teeth, but also will show the state of adaptation, the formation of skirt-like tongue, if there is no discomfort, the situation does not require special treatment.