The bag of waters - or amniotic sac - is a bag or "membrane filled with fluid that surrounds your baby in your uterus during pregnancy." The bag of waters is very important to your baby's health.

Amniotic fluid is the fluid that surrounds a fetus during pregnancy. When the amniotic sac breaks, known as the rupture of ...

containing the amniotic fluid and the embryo. The outer membrane, the chorion, contains the amnion and is part of the placenta. On the outer side, the amniotic sac is connected to the yolk sac, the ...

But low amniotic fluid can also be caused by health problems or pregnancy complications like a ruptured or torn amniotic sac, placental problems, or a defect involving the baby's kidneys or bladder.

Viewer discretion is advised. A video from a Spanish hospital captures the moment a baby is born within the amniotic sac, an occurrence that only happens 1 in every 80,000 births. It is also known ...

But it's lovely to look at these pics of one baby boy being born after the other – and to see the second twin being born still in his 'waters' (amniotic sac). The picture above was voted Image of the ...

Yolk sac is then infiltrated with a system of blood vessels, carrying nutrients from the yolk back to the embryo. Other extra-embryonic folds expand up over the embryo to form the amniotic folds. The ...