Rhesus factor and pregnancy
Rhesus factor - familiar to mostphrase, especially in combination "Rh factor and pregnancy." It is perceived as something bad, incomprehensible and very medical. But this is not so - here it is not so much the complexity of the concept as the availability of its explanation. Let's try to figure out what the Rh factor is and how it relates to pregnancy and the future child.
What is the Rh factor and its types
If we simplify as much as possible, then the Rh factor -a kind of antigens safely located on the surface of red blood cells, that is, red blood cells. Only some representatives of humanity they are, but others do not. Hence the variety of Rh factor: positive and negative.
The presence or absence of it does not haveof principle significance, except for one case: if a negative Rh factor is in a woman, and she is going to become a mother. Different Rh factors in parents can provoke a rhesus-conflict in the body of a pregnant woman, which can lead to the loss of the child.
The likelihood of a rhesus-conflict
Conflict of Rhesus factors takes place only inIn this respect: negative Rh factor - in the future mother, positive - in the future father. Statistics of such conflict situations - 75% of cases. If the negative Rh factor in a man, it does not constitute a danger to the future mother and child at any of its Rh factor.
It makes sense before pregnancy to determine the compatibility of your and the blood spouse for the Rh factor, and if necessary, to prevent the possible complications.
The course of pregnancy in Rh-conflict
The first pregnancy in this case proceedssafely provided that there is no contact of the Rh-negative future mother with Rh-positive blood. This applies to both the pre-pregnancy period (for example, blood transfusion) and pregnancy itself (complications in the form of placental abruption, etc.). Contact of a different rhesus blood leads to the fact that the body produces antibodies to the Rh factor. Therefore, the next pregnancy, these antibodies, interacting with the erythrocytes of the child, and lead to the emergence of his hemolytic disease.
It appears in an easy case in the form of jaundice, in severe cases - damage to the spleen, liver and brain. Modern technology allowsDetermine the Rh factor of the fetus by the venous blood of the mother, which enables effective and timely prevention of the possible consequences of Rh factor.
Rhesus factor inheritance
Without going into the details of gene mechanisms of inheritance of Rh factor, one can say unequivocally that:
• If the parents have a negative Rh factor, then the Rh factor in the child will be negative;
• If the Rh factor is negative, for example, the father, and the mother has a positive, and vice versa - the chance for the child to inherit the negative Rh factor is 1: 4;
• If both the mother and father have a Rh factorpositive - the child does not have a chance to get a negative Rhesus. For more details see the dependence of the Rh factor of the child and parents can be in a special table of Rh factor.
How to recognize the Rh factor of blood
The answer to the question "how to know the Rh factor of blood"It is simple: to donate blood from a vein in a specialized medical institution. The study is carried out quickly, and the result will remain with you for life, since the Rh factor, like the blood group, does not change.
Author: Katerina Sergeenko
