sixpenceee:This is the umbilical cords from twins in a knot. This is from monoamniotic twins. That b
sixpenceee:This is the umbilical cords from twins in a knot. This is from monoamniotic twins. That basically means that they share the same amniotic sac and placenta. This only happens in about 1 out of every 35-60 thousand identical twin pregnancies, and consider how rare identical twins already are.Identical twins usually have separate amniotic sacs and they will either share a placenta or each have their own placenta. Basically when they have a single amniotic sac it’s like a pool party in the uterus and the umbilical cords can get tangled at various stages of development. It’s now something that is rarely fatal due to available fetal monitoring technologies. (Source) -- source link