An en caul birth is a rare event where a baby is born still inside an intact amniotic sac. The sac balloons out at birth, with the child remaining inside of the unbroken or partially broken membrane.

A mother gave birth to her son, still in its amniotic sac, at 29 weeks in the front seat of her car Jason Hahn is a former Human Interest and Sports Reporter for PEOPLE. He started at PEOPLE's ...