An overbite may be hereditary. Also known as anterior antimandibularity, anterior bunion refers to the presentation of the lower front teeth biting on the labial side of the upper front teeth during orthodontia, with negative coverage and essentially no cutting function of the front teeth. The occurrence of the condition is related to congenital diseases, genetic factors, and acquired factors. Generally speaking, the development of the body’s teeth and jaws and maxillofacial development is mainly affected by both genetic factors and acquired factors, so the circumcision has a certain genetic predisposition. Moreover, the genetic mechanism of the circumcision is complicated, and most of them belong to polygenic inheritance, that is, if one of the parents shows the circumcision, the offspring will have a high probability of having the circumcision. However, if the parent’s circumcision is due to acquired causes, such as various factors during dental development, it is usually not passed on to the next generation. If a child is suspected of having the symptoms of circumcision, parents are advised to bring their child to the hospital for consultation and, if necessary, choose the appropriate treatment or improvement method according to the individual’s condition under the doctor’s guidance.