Can a woman that is O positive marry a man that is O positive?

Yes! An Rh-positive woman can safely conceive a baby with an Rh-negative man. read more

A man with A positive blood can marry a O positive woman. There won't be any problem regarding the difference in blood groups. The problem starts when the Rh group of mother is different that of father, i.e if she is O negative, this will give rise to a complexity known as Erythroblastosis fetalis ,which when not taken care of results in the death of the second baby of the couple. read more

Yes, B negative blood group women can marry an O positive man. Blood types make absolutely no difference when it comes to couples pairing up in marriage. read more