RH factor in pregnancy

[brajageetha]

Iam a person with B-negative blood group and my wife with       B-positive blood group. Will this affect her pregnancy?
Normally i heard that the mother should not have Negative  blood group when father has positive blood group. But in my case it is in reverse. Could you please explain is any complication is exist in my case?

[Niki73]

I think you are fine because you are the one with the positive blood type... I am A negative and my husband is A positive so I have to have a shot during my pregnancy and one after because if my blood was to mix with my babies blood then my body will try to fight off the baby thinking it is an intruder in my body. But they say the chances of the babies blood and mine mixing are not high but they have to take the percaution. I guess without a shot after I deliver my next pregnancy would be almost a guarentee to end in a miscarriage. But anyway I think you are fine because you are positive but double check with your doctor. I thought for some reason that I read somewhere that all babies are positive in the womb but how can that be? Would the factor change after birth????

[mooshes92301]

I am in the same boat.  I have negative blood though and you said that your wife has positive, right?  But it is possible for the baby to have negative blood so your wife might have to get a RoGham shot after she delivers if the baby is negative.  Its no big deal and your doctor will advise you the best way to handle this.  Apparently years ago it was a problem before they developed the shot.  Good luck!

[nanakay]

actually the only reason the father is  a factor is because he helps determine the blood type of the baby.
if the mother is rh negative and the baby is positive their blood can fight (so to speak) the mothers blood will clot the babies blood. if the mother is positive then it isn't even a factor. (that part i don't know why)
my mother is negative, both of my sisters are negative (thank God) because it wasn't until after they were born that they really started to understand the rh factor. at least they figured it out by the time i came along because i'm positive.
~nanci

[nurse12hr]

Nanakay is quite right; absolutely no harm or worry if the Dad is negative and the mom is positive.

[nanakay]

do you know why that is that the mother is fine if she is positive but not if she is negative. i have always wondered why you don't get the same response if the mother is pos. and the baby is neg.
~nanci

[Niki73]

That's the part I don't understand either is if the baby is negative and the mother is positve why doesn't the mother's body fight the fetus in that case????

[Metallic_Angel1]

Under ordinary circumstances, the presence or lack of the Rh factor has no bearing on life or health. It is only when the two blood types are mingled in an Rh-negative individual that the difficulty arises, since the Rh factor acts as an antigen in Rh-negative persons, causing the production of antibodies. ol i did a book report on it when i was in junior high..scary eh> thast a quote from it.. basically its because If Rh-positive blood is transfused into an Rh-negative person (example is pregnancy or a blood transfusion), the latter will gradually develop antibodies called anti-Rh agglutinins, that attach to the Rh-positive red blood cells, causing them to agglutinate. Destruction of the cells (hemolysis) eventually results.  
Anyway hope that helps... Also btw this only comes into factor during the second preganncy because the mother has no antibodies to use against the babay the first time but has them built up the second time.

Anna

[brajageetha]

Thank you for everyone who answered my question regarding RH factor

[Niki73]

Okay I knew all that but what if the roles are reversed does anything happen? If the mom's blood is rh positive it doesn't matter if the babies blood mixes and it is rh negative?Would the babies blood produce the anibodies to fight off the moms red blood cells and harm the mom???

[Ines]

I have a similar problem regarding RH factor. I am blood type A negative and my firstborn was A positive. Although the doctor said I was going to receive a shot after I delivered everybody forgot about it including myself.
Now I am expecting a second child (just about three weeks pregnant) and I don't know when I should receive the shot. In fact I haven't even been to the doctor yet but after I realized that it might be dangerous I just run to the internet and try to get some information about it. First thing in the morning I am going to call my doctor. Could somebody tell me more about this?