Where does the blood in a fetus comes from? Is it transferred from the mother or created by its own cells?

Question

Where does the blood in a fetus comes from? Is it transferred from the mother or created by its own cells?

In: 14

Answer 1

It’s created by the fetus’s own cells. It’s possible (and not uncommon) for a mother and fetus to have different blood types. This can cause problems if the mother is Rh negative and the fetus is Rh positive.