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BTD Forums  /  Live Right 4 Your Type  /  RH mother and child
Posted by: Curious, Tuesday, July 14, 2009, 12:30am
Is it possible that a mother is O-negative and a child is O-positive? And is it true that O-negative is fairly rare?
I am asking because I am Rh-positive and my mother who is currently in hospital is RH-negative. They said in the hospital (in Germany) that Rh-negative is a rare blood group. I am confused.
Posted by: Captain_Janeway, Tuesday, July 14, 2009, 12:47am; Reply: 1
O negative is around 7% for American Caucasians and I suspect it is similar in Europe and Australia. Rh positive parents can have Rh negative children, Rh negative parents cannot have Rh positive children. Rh negative is recessive just like blood type O and non-secretor. So if one parent is Rh+ and the other is Rh- they can have Rh+ offspring. They can also have Rh- as long as the Rh+ parent has a Rh- gene to offer to their offspring.
Posted by: Lola, Tuesday, July 14, 2009, 1:12am; Reply: 2
same for As, Bs and ABs

http://www.dadamo.com/wiki/wiki.pl/Rhesus_(Rh)_Blood_Group
Posted by: Curious, Tuesday, July 14, 2009, 3:24am; Reply: 3
Quoted from Captain_Janeway
Rh negative parents cannot have Rh positive children. ... So if one parent is Rh+ and the other is Rh- they can have Rh+ offspring.

Thanks CJ, that would mean my father would have been Rh+. Can't check it because he is dead :(.

Posted by: Henriette Bsec, Tuesday, July 14, 2009, 5:22pm; Reply: 4
Quoted from Captain_Janeway
O negative is around 7% for American Caucasians and I suspect it is similar in Europe and Australia. Rh positive parents can have Rh negative children, Rh negative parents cannot have Rh positive children. Rh negative is recessive just like blood type O and non-secretor. So if one parent is Rh+ and the other is Rh- they can have Rh+ offspring. They can also have Rh- as long as the Rh+ parent has a Rh- gene to offer to their offspring.

Well actually I was told on the fertility clinic that it happens  but that it is very rare

I asked because I read this and I wanted to be sure that I got a rh- donor
;
http://www.naturalbirthandbabycare.com/rhnegative.html
Posted by: Amazone I., Tuesday, July 14, 2009, 5:28pm; Reply: 5
but when mum is Rh - a shot must be given during birth for not intoxicating the baby :D.... and this is ok for every b-type...not only for O's...!!!
I've a B Rh - mum ;)...and she lost a lot of kiddies...when havin been young...coz her hubby was an A Rh +.... but ...ok grandmas' revenge put out 2 AB's and they are still alife !!!  ;) ;D(ok)(dance)(sunny)
Posted by: Curious, Wednesday, July 15, 2009, 4:20am; Reply: 6
Quoted from Amazone I.
but when mum is Rh - a shot must be given during birth for not intoxicating the baby :D.... and this is ok for every b-type...not only for O's...  ;) ;D(ok)(dance)(sunny)

From what I read it is ok for the first child (without a shot) if the mother is RH- and the child RH+. Luckily I was a first child, else I would probably not be here.

Posted by: shells, Wednesday, July 15, 2009, 8:00am; Reply: 7
That's right, I've had shots within the first 72hours of giving birth after my positive babies (also miscarriage) but not after my negative babies.  Also RH- females who might require a blood transfusion should bear in mind that the donated blood might be from an older female that has had a positive child and did not receive the Rhogam shot....
Posted by: Curious, Wednesday, July 15, 2009, 11:48pm; Reply: 8
Quoted from shells
That's right, I've had shots within the first 72hours of giving birth after my positive babies (also miscarriage) but not after my negative babies.  Also RH- females who might require a blood transfusion should bear in mind that the donated blood might be from an older female that has had a positive child and did not receive the Rhogam shot....

That is very interesting, I did not realise that the shot is given after the birth.
I hope that the doctors know what they are doing with my mother, because she got two blood-transfusions so far. She has an operation today, which probably means more blood-transfusions.
Posted by: shells, Friday, July 17, 2009, 7:42am; Reply: 9
Blood transfusions should not worry her if the blood is Rh-.   Only Rh- females who have not finished having their children should be concerned and only if the Rh- blood being received has built up antibodies from having a Rh+ baby and then not receiving the Rhogam shot.  

These days all Rh- pregnant mums are given shots throughout pregnancy whether they are carrying an Rh+ or Rh-.  I tend to think this is a result of big pharma as it is so not necessary.  As long as the new mum gets a shot within the first 72 hours and only if bub is Rh+ should suffice.   :-/

Your mum should be fine   :)
Posted by: Henriette Bsec, Friday, July 17, 2009, 8:48am; Reply: 10
Quoted from shells
Blood transfusions should not worry her if the blood is Rh-.   Only Rh- females who have not finished having their children should be concerned and only if the Rh- blood being received has built up antibodies from having a Rh+ baby and then not receiving the Rhogam shot.  

These days all Rh- pregnant mums are given shots throughout pregnancy whether they are carrying an Rh+ or Rh-.  I tend to think this is a result of big pharma as it is so not necessary. As long as the new mum gets a shot within the first 72 hours and only if bub is Rh+ should suffice.   :-/

Your mum should be fine   :)


well we dont here in Denmark ;)
and to be honest I donīt think it is neccersary or safe
- just big Pharma counting its money
Posted by: Curious, Saturday, July 18, 2009, 2:19am; Reply: 11
Quoted from shells
Blood transfusions should not worry her if the blood is Rh-.   Only Rh- females who have not finished having their children should be concerned and only if the Rh- blood being received has built up antibodies from having a Rh+ baby and then not receiving the Rhogam shot.  

These days all Rh- pregnant mums are given shots throughout pregnancy whether they are carrying an Rh+ or Rh-.  I tend to think this is a result of big pharma as it is so not necessary.  As long as the new mum gets a shot within the first 72 hours and only if bub is Rh+ should suffice.   :-/

Your mum should be fine   :)

Thanks a lot, shells, that is reassuring.

Posted by: newtypeA, Monday, July 20, 2009, 8:34pm; Reply: 12
Rh negative mothers can't have Rh positive children??? Umm...ok...

I'm pretty sure my mom told me she was A-, because I'm A+ (at least, according to the Red Cross, I am). Seems I remember her mentioning that she had to get the Rhogam shot.

Also, my father is Rh positive. When I was born, I had jaundice and anemia...both typical of Rh+ children born to an Rh- mother and Rh+ father. Mom was also anemic (she ate a poor diet during pregnancy, though).
Posted by: koahiatamadl, Monday, July 20, 2009, 9:14pm; Reply: 13
Rh negative parents, i.e. where both mother and father are Rh negative they cannot have Rh positive children :)
Posted by: newtypeA, Monday, July 20, 2009, 9:37pm; Reply: 14
Quoted from koahiatamadl
Rh negative parents, i.e. where both mother and father are Rh negative they cannot have Rh positive children :)


Now THAT makes more sense.  :)  
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