In addition to the amazing, and scientists have not yet found an explanation for the division of blood into four groups, there is also a division according to the Rh factor of blood.. This factor got its name from rhesus monkeys, in which a special protein was first discovered.. Its presence in the blood makes the blood Rh-positive, the absence - negative.

Remember: “You are a teacher or you drive a tractor, you must know your Rh factor”? This is really necessary, and if you wish, you can even put a stamp in your passport, which will indicate the group and Rh factor of the blood.. For what? The need may be due to a serious injury or illness that will require a blood transfusion. Such a stamp in the passport saves time and allows you to immediately start the transfusion procedure.. It is not enough for the blood to be of a compatible group, it is important that it is also compatible with the Rh factor, since otherwise an Rh conflict occurs.. This condition manifests itself in the destruction of blood cells, which leads to anemia.. In severe cases, this condition is life threatening..

In order to find out your blood group and Rh factor, you need to do a blood test once. This will be enough, since both the group and the Rh factor remain unchanged throughout a person’s life.. Information about Rh is important not only in case of tragedy, the Rh factor of the blood is important for pregnancy. Pathology can occur when the mother is Rh-negative and the child is Rh-positive, but this happens either with a second pregnancy with an Rh-positive child, or when an Rh-negative woman has previously received a blood transfusion that is incompatible with the Rh factor. At the same time, there is precisely the risk of an Rhesus conflict, which does not mean its indispensable occurrence..

The fact is that the blood of the mother and child during pregnancy does not mix, since there is a placental barrier.. However, during childbirth, this can happen, since the female genital tract is injured, but the child may be injured with a violation of the integrity of the skin, but may not get.

When Rh-positive blood enters Rh-negative, antibodies are produced, in other words, cells-destroyers of incompatible blood. When such maternal blood enters the child, they begin to destroy his blood cells, and hemolytic anemia occurs..

In the event that such a risk is known in advance, medical measures are taken in time to prevent the development of a serious illness.. That, perhaps, is all that affects the Rh factor of the blood.

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