White hard lumps on the tooth bed, may be horse teeth or alveolar bone protrusion. 1. Horse’s teeth: for newborn infants and young children, there will be some white globular hard objects in the incisor region, which is caused by the proliferation and keratinization of the epithelium of the dental plate in the embryonic time, and generally does not require special treatment, and can be removed by itself. 2. Alveolar bone protrusion: some people can see multiple bone protrusions on the lingual or labial side of the teeth, due to the thin mucosa, white color and hardness, these are caused by alveolar bone hyperplasia, partly affected by genetic factors, and usually do not need to be dealt with. If teeth are missing in old age and the protrusions interfere with denture restoration, alveolar bone revision is required. It is recommended that the oral cavity every 6 to 12 months regular visits to the regular hospital stomatology department for checkups and timely consultation if there is any discomfort.