Can Type A and B Parents Have O-Type Children?

Question

My father’s blood type is AB, and my mother’s blood type is O. Is it possible for me to have Type O blood? I’ve seen online that AB parents cannot have O-type children. Although I’m 35 years old, I was born at home, so I should not have been handed the wrong child.

Answer

According to the rules of blood type inheritance, if the father has an AB blood type, regardless of the mother’s blood type, the child cannot have an O-type blood. This is due to the way blood type genes are inherited. I suggest you recheck your blood type information to ensure you have not misheard or misremembered. This advice may help resolve the issue of “My father has AB blood type, I have O-type blood, and online says AB parents cannot have O-type children.” Wishing you health!