A caul covering a newborns face. To be "born in the caul" simply means a child is born with the amniotic sac or membranes still intact around the body. The sac consists of two adherent membranes (chorion and amnion) of fetal origin which separate the amniotic fluid and fetus from the maternal uterine wall. When a baby is born in the caul, the sac balloons out at birth, covering the baby's face and body as he or she emerges from the mother. A child born in this way is known as a caulbearer.