What causes congenital anal absence?

Congenital absence of anus may be caused by genetic factors. Patients with congenital absence of anus are congenital developmental malformations of infants. The occurrence of this disease may be caused by genetic mutations in the development of the fetus anus. Affected by genetic changes, abnormal division of cells at the end of the digestive system does not develop into anus. Secondly, it may be caused by congenital dysplasia. If affected by genetic factors, fetal weakness may lead to anal dysplasia. In addition, the mother's own weakness may also lead to stunting of the baby.