Rh factor is a protein found on the surface of red blood cells.The presence or absence of the antigen can be determined by simple analysis in blood group.Statistical data indicate that the seventh of the world's population is Rh negative.This means that a protein on the surface of red blood cells, which has been mentioned above, completely absent.
Rh-negative woman: what is it dangerous?
This genetic feature is characteristic for both men and women, but for a strong half of the population does not pose absolutely no danger.Also worry about the Rh factor is not necessary and women who it is positive.The only cause for concern is the case when a woman is Rh negative and she is carrying Rh-positive fetus.In those cases where the child's maternal blood does not contain the antibody, and the father's blood on the surface of red blood cells is a protein responsible for the positive Rh, there is a risk that the fetus will inherit the genes of the father.There is a risk of formation of Rh-conflict, which can cause a number of troubles.They are mostly related to the second and third pregnancy.The mother's body takes protein found in the blood of the fetus as a foreign body, and begins the formation of cell-protectors that can penetrate through the placenta to the yet unborn child and destroy his immunity in the womb.Wherein the pregnant woman does not feel any change, but they can be determined using specific assays.Sometimes, the first and the second child is born healthy, but with each subsequent pregnancy the risk of more and more increasing.In such cases we say that the woman is Rh positive-negative.The statistics indicate that only 0.8% of pregnant women there is such a thing as rhesus conflict.It can cause miscarriage or some serious illness of the child, such as the enlargement of the spleen, heart and liver, jaundice, erythroblastosis or reticulocytosis.In more severe cases - anemia, Edematous baby syndrome or fetal hydrops.Since these diseases are extremely severe, in many cases, can occur dead child's birth or death of a newborn.
When is shown Rh sensitization?
reasons for that in the mother's body began to form antibodies to D, are many:
- getting the baby's blood in the mother's bloodstream during delivery (when the mother "positive", and the fetus is Rh negative);
- in cases of ectopic pregnancy or interrupted,
- during abortion or bleeding for longer than 12 weeks, and others.
Avoiding Rhesus conflict?
In most cases, the mother's blood that lacks the antigen D, the first child to the presence of this gene are born healthy.In subsequent pregnancies, the situation is complicated, but in such cases, you should not lose hope.For example, the mother's body, which Rh negative, within three days after birth, or other event triggering mixing of blood with the opposite Rh factor introduced specific antibodies that block the formation of protective responses in the female body.This is the most reliable aid for those who want to create a large family and have not only one child, but several.
