baby's head and that means less bruishing for the mother and the baby. In this kind of birth,the sac or also known as veil or caul is never broken and the water is not released until the baby is outside the womb. A caul is harmless and can be easily removed but it has to be done properly so that the baby will not get injured.
Veiled births usually occur in premature deliveries. The baby will not take the first breath until he/she hits the air for the first time and the placenta will continue to provide oxygen until that happens, so there is no chance of the baby breathing in the fluid.