How do I know the baby's blood type?

The definition of the blood group and Rh factor is one of the very first tests that is taken in humans. In newborns, immediately after their birth, physicians determine the belonging to a particular group and report this to the mother in childbirth. How to recognize a child's blood type, if you accidentally forget about it, there are several ways to help.

The blood group depends on the parents

Everyone knows that the child's blood type is directly dependent on what kind of blood it has from its biological parents. There is a table that allows you to determine the blood group in a child, both with an accuracy of 100%, and with a result of 25%, 33.33% or 50%.

As can be seen, if the mother and father of the baby have blood group I, then he will be the bearer of the same and not any other. This is the only case when it is possible to obtain a 100% reliable result in how to recognize the blood group of a child without medical analysis without visiting the laboratory. In all other cases, one can only assume probability.

For an example, to make it more understandable, we can consider the situation when the mother and father have blood group III, then the baby will have I or III groups, and II and IV can not be.

The hardest thing to know is what type of blood the child has, if the father has a third group, and mothers II, and, as in this order, and vice versa. At such parents the kid can be born with any blood group.

As in any method, in certain situations (frequent blood transfusions, the person's belonging to the blood chimera), there may be errors. Although in fairness, I must say that such cases are very rare.

If we consider the statistics of people's belonging to different blood groups, then the scientists determined the following gradation:

So, if you are the parents of a baby who can have I or III blood types, then most likely he is the bearer of group I, although III can not be completely ruled out.

A blood test is a reliable result

To date, the most accurate method, how to know the blood group in a child, with an accuracy of 100%, is a blood test. It is taken from the vein or from the finger, and the result, as a rule, is ready the next day.

So, just having passed the blood test, you will get an unambiguously reliable result. In the meantime, prepare to go to the laboratory, use the table to guess the future result.