All people belong to some of the blood types, A, B, AB, or O, which is determined from birth.
Experts claim that every blood type has its own properties, shared by its members. This is a review of the most important characteristics of blood types:
Blood type and offspring
About 85% of people are Rh positive. Yet, if the woman is Rh negative and the man who she conceives with is Rh positive, there is an increased risk that their child will develop some health issue.