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A. Schuyler, NP
A. Schuyler, NP, Nurse Practitioner
Category: Health
Satisfied Customers: 16326
Experience:  Board Certified NP, MS, RN. 25 years private practice & hospitalist
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Is a male having an O+, and me A-, not my blood brother?

Resolved Question:

Is a male having an O+, and me A-, not my blood brother? Also, I had scarlet fever. I forgot nurse said I couldn't have children. Do I have a family? Me A-, wife and 2 children AB+, one boy A+. Wife said she loved on a first cousin. Do I have a family by blood? Customer
Submitted: 8 years ago.
Category: Health
Expert:  A. Schuyler, NP replied 8 years ago.


Welcome to Just Answer and thanks for your question. If one parent has A- blood and the other parent has AB+ blood, then the possibilities for the children are: A+, A-, B+, B-, AB+, or AB-. Having scarlet fever as a child does not affect fertility. It is mumps that may or may not affect male fertility. A sperm test ordered by your doctor would determine if you are fertile or not.

In order to tell if your O+ male is your brother, I would need to know the blood type of either one of your parents.

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