eli5: Why does blood type not matter when choosing a surrogate mother?

Question

Organ transplants require that the donor have a blood type that is compatible with the recipient.

Why is that not a requirement when you are actually growing the organs themselves during a surrogate pregnancy?

Thanks in advance!

In: Biology

Answer 1

it’s a non-starter, because you have no idea what the blood type of your baby will be when you are choosing a surrogate unless the bio mother and father are both type O. Otherwise it’s at best a coin flip.