Rhesus Factor is an antigen that exists on the surface of red blood cells in most people (about 85% of humans).
People who have the Rh “positive” (+) blood types, such as A+, O+ or B+ are said to be Rhesus Factor positive, while those who have the Rh “negative” (-) blood types, such as A–, O– or AB– are said to be rhesus factor negative.
The “+” and “-” in front of the blood group is the Rhesus factor. Generally, we have A+, A–, B+, B–, AB+, AB–, O+ and O–. Rhesus factor is genetic in nature. It is inherited from parents, emphatically the father.
HOW DOES RHESUS FACTOR CAUSE MISCARRIAGE ?
If a Rh– woman is impregnated by a man with Rh–, there wouldn’t be any problem.
However, if a Rh– woman is impregnated by a man with Rh+, there would be a problem if the baby inherits Rh+ from the father .
We have what is medically called l Rhesus Factor Incompatibility. The baby would obviously be Rh+.
During child birth, once the baby’s Rh+ comes in contact with the woman Rh- during delivery, the antibodies are immediately activated by the woman’s body’s immune system.
The activated antibodies would see the new Rh+ as foreign body or a threat and consequently they would be at alert to attack and get rid of the foreign body.
Unfortunately as such, after this particular child birth, the woman would keep having miscarriages because the activated antibodies would see subsequent Rh+ pregnancies as foreign bodies and would keep fighting and taking them off.
Women with Rh activated antibodies are said to be Rh sensitized and once these antibodies are activated , they can never be deactivated until the woman dies.
Rh induced antibodies are activated in a Rh- woman by child birth, abortion, miscarriage and ectopic pregnancy.
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