Map tongue occurs on the surface of the tongue and the lesions are in different locations on the surface of the tongue, changing in shape and size, and are indefinitely wandering. In Western medicine, it is also called “wandering tongue”. The reason for the formation of map tongue is not very clear, it may be related to intestinal parasites, or gastrointestinal diseases, or it may be related to neurological deficiencies, and emotional instability. In addition, map tongue is also familial, and the parents’ generation has had map tongue, which is related to genetics. The map tongue occurs mostly in children, especially in infants and young children who have weak resistance. Because of the weakness of the spleen and stomach, many infants and children have a map tongue. For children with weak spleen and stomach, they should eat foods that can strengthen the spleen and stomach, such as yam, malt, grain buds, hawthorn and lotus seeds, which can strengthen the spleen and stomach and help digestion. These foods can be boiled into porridge to help children, eat. The appearance of the map tongue is also related to the lack of trace elements and vitamins, should not be picky about food, eat more fresh fruits and vegetables, pay attention to nutrition with. Children with map tongue should avoid spicy, fried food, these foods are not easy to digest and absorb. The formation process of map tongue is long, usually should pay attention to diet, treatment is also relatively slow, should maintain a calm mood, can not rush treatment.