When they are loose and/or cause discomfort to the infant and mother, especially when nursing, they are removed shortly after birth; otherwise they are allowed to remain.
Although their presence does not indicate a medical condition, they are sometimes associated with (1) chondroectodermal dysplasia or Ellis-van Creveld syndrome, (2) oculo-mandibulo-dyscephaly with hypotrichosis or Hallermann-Streiff syndrome, and (3) pachyonychia congenita or Jadassohn-Lewandowski syndrome.
Word origin: Latin nātālis (of, belonging to one's birth).
Synonym: fetal teeth
Compare: neonatal teeth