Teeth growing in the direction of the tongue may be crowded teeth, multiple teeth or blocked teeth. 1. Dental crowding: In some patients, due to the premature loss of milk teeth without restoration or abnormal eruption sequence, which leads to insufficient space for the subsequent teeth to erupt, there is dental crowding, and the long axis of the teeth erupting behind is tilted and located on the lingual side, so there is a lingual direction of growth. Orthodontic treatment is recommended. 2. Multiple teeth and blocked teeth: Multiple teeth outside the dentition and wisdom teeth erupting at the end of the oral cavity can grow in any direction, and lingual growth is one of them, which can be extracted directly, and if there is a gap after the former is extracted, orthodontic treatment will be carried out if necessary. It is recommended to go to the regular hospital stomatology consultation, by the physician examination after a clear diagnosis, and symptomatic treatment.