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Dr. Andrew Rynne
MD
Dr. Andrew Rynne

Family Physician

Exp 50 years

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Is It Bad To Conceive With Someone Who Has The Same Blood Type?

Hello, My name is Meriandy I am 16yrs. old & i donated blood 2 months ago. Only because i was very curious to what my blood type is because my mom is O- . & It turns out I am O- because my card from my donation came in today. My mom told me it is dangerous to conceive with someone that has the same blood type. She said this because her & my dad are both O- & my mom always had to get some strange shots because of this. as she told me. Therefore i just want to know is it really bad to conceive with someone that has the same blood type as you. does the baby come out with effects or health problems?
Wed, 28 Nov 2012
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Hematologist 's  Response
hello meriandy,
Be relaxed. If you consider the risks involved to the baby, then marrying someone with Rh+ Blood group may be a problem. Its absolutely no issue to marry a person with -ve group.
Take care
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Pediatric Hemato-Oncologist Dr. Dr. Amit Kumar's  Response
hello dear,

no, its not true. in fact marrying a person of same blood group may have some benefits of its own.
like less chances neonatal jaundice in the newborn.

but any mother who has a negative blood group if conceives with a fetus with a positive blood group, it may have some problems for the fetus especially for the second fetus (if the elder sibling also had a positive blood group).

may be you need to confirm from the medical records if your mother and father had same blood groups of was your father O+. in this case your mother might have needed anti D antibodies.

hope i have answered your question
Dr. Amit Kumar
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Is It Bad To Conceive With Someone Who Has The Same Blood Type?

hello meriandy, Be relaxed. If you consider the risks involved to the baby, then marrying someone with Rh+ Blood group may be a problem. Its absolutely no issue to marry a person with -ve group. Take care