If a mother is Rh pos and her baby is Rh neg won't it harm the baby since Rh neg can only receive from Rh neg?

Question

please explain in simple terms

Answer 1

the only time i have heared of complications is when the MOTHER is RH neg and the Child is RH pos. not the other way around

What is Rh blood group?--
Rh blood group is a group of antigens present on the human red blood cells. When discvoered, they were found to be present in rhesus monkeys as well. Hence the blood group was called Rh(rhesus) blood group.
How can Rh blood group cause problems in pregnancy?--
In case of mismatch of Rh group ( mother & the fetus) there can be immune destruction of the fetal red blood cells when still in utero & even after birth.

When does this mismatch occur?--
When the mother's group in Rh negative & the fetus' group turns out to be Rh positive; this mismatch occurs.
This is possible when the mother is Rh negative & the father is Rh positive.

What occurs in case of a mismatch?--
During delivery, the blood of the fetus mixes with that of the mother. The fetal blood is Rh positive. Since the mother is Rh negative, these red cells are perceived as foreign cells. Hence the mother's body develops antibodies against them. There is no problem with the first pregnancy as it only sensitizes the mother to the Rh antigen.
In the later pregnancies, the antibodies formed in the mother due to previous sensitization now cross the placental barrier & reach the fetal circulation.
If the fetus is Rh negative there is no problem. However if the fetus is Rh positive these antibodies attach to the fetal red blood cells. Once attached to them they destroy these cells.

What is the effect on the fetus?--

Congenital anemia of the fetus- This is the mildest form of the fetal affection. The fetus at birth is anemic due to destruction of the red cells. It may continue to be so for 6 weeks after birth as the destruction of the cells continues.
Icterus Gravis Neonatorum- This is a more advanced stage of the same condition. The fetus is anemic. At the same it is also icteric (jaundice). At birth there is no jaundice, but soon jaundice develops.
Hydrops Fetalis-- This is the severest form of the disease.The fetal liver is damaged.Later even the heart fails & the fetus dies.
Is the condition preventable?--
Yes.
If the mother's group is Rh negative & the fetal group turns out to be Rh positive then the mother is given Rh anti -D immunoglobulin.
How does this prevent the condition?--
This injection contains antibodies to the Rh group.Hence these antibodies destroy the fetal red cells before they can sensitize the maternal immune system. Once the maternal sensitization is prevented the next pregnancy becomes safe.

When is the injection administered?--
The injection should be given within 72 hours of delivery. Giving it after 72 hours may not prevent sensitization.

Should the injection be given only after delivery?--
No. The sensitization may also occur in case of abortion & even some obstetric procedures.Hence it is to be given in these cases also.

Answer 2

If the mother has positive blood then there is nothing to explain. The baby will be fine, the mother will be fine...that's about as simple as it gets. The only time there are complications is when the mother is RH negative and the baby is RH positive. Then the mother needs the Rhogam shot or should have had one if she was previously pregnant and the baby was RH negative as well, the shot is in case the second pregnancy is RH positive. For some reasons this shot doesn't always work and complications arise as the fetus attempts to pass through the birth canal and the mother's blood antibodies actually "attack" which could result in the baby needing a transfusion or the mother needing an emergency C-Section.

Answer 3

Ok, so simple.... Hmmm, lets see. If the mother is Rh positive, and her baby is Rh negative, and this is her FIRST child... The baby most likely wont be affected. The second child she decides to have, however, will. But there are injections the mother can get to prevent any damage or harm to the baby. Now, to explain why it will affect the 2nd child, but wont the 1st... ok. The mother is Rh+. So she has this Rh+ antigen in her body... She becomes pregnant, which introduces the Rh- antigen... HOWEVER, it takes too long for her body to produce the antibodies needed to fight the Rh-, which is why it doesn't affect the 1st child. When the second comes along, her body already HAS that antibody, so it DOES affect the 2nd baby. Like I said though, There are medications the mother can get to prevent any harm to the baby. If you have more questions, or don't understand anything I just said, go ahead and e-mail me your questions. Have an awesome day!!! =)

Answer 4

a rh pos mother will not have any problem having a rh neg baby
its only a problem when the mother is rh neg if a mother is rh neg they are given a injection of ant d which stops the mother from making any harmful antibody's
because if a mother is rh neg and she has a rh pos baby and there blood mixs the mothers body makes anibody's that could harm her second rh pos baby

rh neg mother of 4

Answer 5

I am rh neg, and when I got pregnant, I had to get a needle to nuetralize my blood, which prevents any problems from occuring. But when it is the other way around, it isn't a problem because it is your blood that matters. Rh neg will fight off Rh pos as if it is a disease, which could harm the baby, but when it is the other way around Im pretty sure there is no problem. Hope this helps you.

Answer 6

I know that if the mother and the baby have different blood types, one being rh pos. and one being rh neg. that the mother needs to have some type of shots. The best thing to do is ask the doctor if you are not sure.

Answer 7

the mother is given Rhogam to counter the rh factor while pregnant

Answer 8

If you have a positive blood type then it doesn't matter what your baby has, it only matters in you have a negative blood type and the baby has a positive blood type. I know this because I have a negative blood type and had to get the Rhogam shot but if I had positive blood then I wouldn't have needed the shot.