12/03/2026
Healthcare workers don’t talk about this enough…
Many couples don’t realize that something as simple as blood group compatibility can affect pregnancy — especially when it comes to the Rhesus (Rh) factor.
Your blood group is not just A, B, AB, or O. It also has a positive (+) or negative (-) sign, which tells us your Rh factor.
Here’s where it becomes important in pregnancy.
If a mother is Rh-negative and the father is Rh-positive, the baby may inherit the father’s Rh-positive blood. During pregnancy or delivery, a small amount of the baby’s blood can mix with the mother’s blood. When this happens, the mother’s body may see the baby’s blood as “foreign” and start producing antibodies against it.
These antibodies usually do not affect the first pregnancy, but in future pregnancies they can attack the baby’s red blood cells. This condition is called Rhesus incompatibility, and it can lead to serious problems for the baby such as severe anemia, jaundice, or even complications before birth.
The good news is that this condition is preventable.
That is why pregnant women are tested early in pregnancy to know their blood group and Rh factor. If a mother is Rh-negative, she may receive a special injection called Anti-D immunoglobulin during pregnancy and after delivery to prevent her body from producing harmful antibodies.
A simple test and the right care can protect future pregnancies and save lives.
This is why early antenatal care and proper medical guidance are so important.
If you’re planning a family or expecting a baby, make sure you know your blood group and Rh factor