Children with two teeth in the same position on the gums may be crowding caused by tooth alignment deformities, but also may be milk teeth stagnation, extra teeth, etc., as follows. 1. Mal-alignment of teeth: Permanent teeth may be located in the same position on the gums due to the lack of eruption position and other reasons leading to mal-alignment of two permanent teeth. 2. Retained milk teeth: Abnormal root resorption of milk teeth can lead to retained milk teeth, and their inherited permanent teeth can erupt in the same position on the gums. 3. Extra tooth: It may come from the formation of too many tooth buds or the splitting of tooth germs, and can occur in any part of the jawbone. There may be other reasons for a child to have two teeth in the same position on the gums, it is recommended to go to the hospital in time to clarify the cause of the disease and then targeted treatment.