Infantile teeth can be caused by incorrect breastfeeding posture, genetic factors, cleft palate and so on. 1. Incorrect breastfeeding posture: If the bottle is positioned too high during breastfeeding and the baby’s jaw needs to suck forward when feeding, it may cause the condition of circumcised teeth. 2. Hereditary factors: If one of the parents has a condition of circumcised teeth, it will be easily passed on to the child, resulting in the baby having circumcised teeth. 3. Cleft Palate: If an infant has a cleft palate, there may be a cleft in the maxillary jaw and the jawbone, resulting in an obvious underdevelopment of the upper jaw, leading to the development of a circumcised tooth. Parents should bring their babies to regular hospitals in time to take targeted treatment under the guidance of professional doctors when babies with congenital teeth appear.