2 positive blood group compatibility for conception. Compatibility of blood types of a man and a woman for conceiving a child

The urban lifestyle implies a responsible attitude to the birth of a child. Married couples have become. This publication informs future parents about the dangers associated with the incompatibility of blood factors, and how to eliminate them.

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Blood types

The human immune system is built in such a way as to prevent the penetration of a foreign agent into the blood, which is a specific protein molecule.

Important! In medicine, it is customary to establish the compatibility of the blood group (blood groups) of parents according to the AB0 system and the Rh factor (Rh).

Antigens are located on the surface of red blood cells. When incompatibility occurs, the immune system destroys the intended enemy, sticking together red blood cells.

This leads to death. There are four main blood groups. Type I erythrocytes do not contain antigens. Therefore, such blood is designated by the number 0. Antigens of cells of group II are named by the letter A.

Blood with erythrocytes carrying agglutinogens of type B on the membrane was assigned to category III.

Red cells that have both biologically active proteins, that is, AB, are considered to belong to the IV blood group. The ratio of carriers of erythrocyte antigens among the peoples of different continents and territories is not the same. Most often there are carriers of groups I and II. The rarest variant- AB, that is, the fourth.

In addition to the group for checking for incompatibility, you must consider Rh factor(Rh). If this lipoprotein is present on the erythrocyte membrane, one speaks of Rh+. Statistics claim that 85% of earthlings have this antigen as oxygen transporters. Red blood cells lacking this factor called Rh negative(Rh-).

When evaluating hemes for compatibility, both concepts are used, for example, the first negative blood group, otherwise 0-. Therefore, the planning of conception and subsequent successful bearing should be taken responsibly by future parents. They need to donate blood to test for compatibility.

Group Compatibility

To determine the absence of a conflict between the blood of a pregnant woman and an embryo, a table has been developed. The cells indicate the probability of conceiving a fetus with a certain group, which is inherited from the parents. The first column shows the category of hema in the mother, in 2-5 in the father. In the cells, the probability of the birth of offspring with one or another blood group is estimated,%.

When it comes to heredity, it should be borne in mind that the probability of passing on a trait is 50%. Therefore, if one of the parents has I blood group and the second has IV, then it is equally likely that the child will receive antigen A or B. In a married couple, where one of the parents has agglutin B and the other antigen A, a child is equally likely with any of the four possible groups. If the father and mother have the same type of gemma (for example, II), then the children will have the same antigen with a 75% probability.

These features allow to exclude paternity or motherhood in litigation. So, a mother with AB cannot have a child with the first group. However, there are exceptions to any rule.

The so-called Bombay phenomenon indicates the appearance of a blood group in a child, which, according to the above information, cannot be.

Such exceptions are extremely rare, occur with a probability of 1/10 million, and indicate a lack of our knowledge of heme types.

On the surface of the erythrocytes of the parents there are proteins with antigenic activity. In accordance with the AB0 diagnostic system, a table has been developed that is used to determine probable blood type future child.

Rh compatibility

What blood groups are compatible? When both parents have a positive or negative Rh, conflicts between the mother and fetus will not happen. If the mother has Rh-, and the father has it positive, there is a possibility of a conflict between the mother and the fetus. The immune system is able to reject the antigen that the pregnant woman does not have. Gestation, in which the Rhesus conflict occurs may end in miscarriage. If the child is born alive, anemia, dropsy, and mental retardation cannot be ruled out. Most often, the disease occurs.

Firstborns are lucky. The process of accumulation of antibodies is a long process. At the beginning of gestation, their titer is insufficient to cause significant damage to the fetus, and an already formed embryo is able to withstand the attack. The situation is worse when the pregnancy is not the first. The body remembers the stranger and attacks immediately. Similar cases occur if women have previously had abortions and miscarriages.

Table for Rh conflict

Diagnosis of incompatibility is carried out when, according to the results, anomalies in the development of the fetus are established. Venous blood is taken from the mother, the DNA of the embryo is isolated, it is examined to detect a fragment responsible for the production of the corresponding lipoprotein. If such a site is found, the fetus is considered Rh-positive.

Women with described problem tested monthly for antibodies. With a positive answer, the pregnant woman is hospitalized. The most effective, but also risky method of treatment is considered blood transfusion fetus. Rh-parturient women are injected with anti-rhesus globulin, which sends a signal to immune cells to stop producing antibodies.

Blood type compatibility at conception

Potential parents are wondering if blood type affects conception? Reliable impact on fertilization not installed. The presence or absence of the Rh factor is much more important. What blood groups are compatible? Any, if there is no conflict on Rh.

Blood type analysis

Scientific research reveals previously unknown facts that indicate the existence of compatibility of blood types for conceiving a child. It turned out that impotence in the owners of group I occurs much less frequently than the rest. Researchers believe that if a man has the second blood group, then his penis has an extremely developed venous network, which is damaged during conception. A variety of gemma has an effect on fertility. The negative effect of the first group on the frequency of conception is accelerated expenditure and premature cessation of ovulation.

The scientific discussion on this issue is not over, the information is contradictory. The stuffing of information from unscrupulous advertisers promoting non-traditional medicines is not ruled out. Undoubtedly, women in labor who do not have the same blood type that is praised in various publications should not despair. But it is necessary to consult with experts.

The influence of the group on pregnancy

Some combinations of blood types of family partners can interfere with the painless bearing of the fetus. What blood groups are compatible? The following are the likelihood of conflicts between a potential mother and a fetus depending on her type of heme:

• If the woman has group 0, the father has another, then the antibodies of the embryo with a variant other than I destroy the mother's red blood cells, causing toxicosis. This type of conflict can be asymptomatic and less dangerous than Rhesus.
• What blood types of a man are incompatible with the second positive female? Problems arise if this III or IV.
• When the mother is category III, one should be careful if the partner has A or AB antigens.
• Fourth positive blood type considered ideal in terms of compatibility for conception.

Incompatible groups

The likelihood of a confrontation between antibodies and red blood cells increases if the embryo has an unequal group with its mother.

Despite the successful conception of a child, during pregnancy, the body accumulates antibodies, which are activated during the neonatal period, lysing red blood cells.

Fourth positive blood group of the embryo may conflict with 0, A or B-antigens of erythrocytes of mothers.

The greatest danger lies in wait for carriers of 0Rh- when antigens II or III are detected in children.

What blood types are incompatible at conception? Doctors pay special attention in the following situations:

• A woman has type I hema, her partner has any other.
• Mom II, and dad III or IV.
• Men A or AB have a wife B.

In fact, the problems of compatibility of blood types for conceiving a child does not exist. There is only a predisposition to the manifestation of certain pathologies that can be avoided if you follow the recommendations of the gynecologist.

At conception, it is necessary to pay increased attention not to the blood types of the parents, but to the combination of the mother's negative Rh factor with the father's positive one.

The post-industrial way of life is accompanied by a decrease in the birth rate. The health of the unborn child is affected by many genetically determined circumstances. The most dangerous is the combination of a Rh-negative mother with a father who has this antigen.

Useful video: blood type compatibility, what is Rhesus conflict

Good afternoon, dear readers!

When planning a pregnancy, some couples are faced with the fact that pregnancy does not occur for a long time. Many immediately begin to think about how compatible they are in terms of blood types.

With the development of genetics, scientists managed to explain many previously incomprehensible facts. However, much still remains beyond understanding, for example, which blood types are incompatible for conceiving a child. Let's try to understand this issue.

To understand why people are incompatible, you should know the basic concepts of genetics. The difference between human organisms consists of different sets of proteins and antigens that are found in any tissues of the body. Depending on the presence or absence of an antigen in a person, Rh is positive or negative.

In all situations when it comes to mixing, the uniformity of its structure should be observed. If the Rh factor in people is the same, we can talk about compatibility on this basis.

At conception

Rh compatibility is one of the categories that are taken into account when planning a family. Knowledge of this indicator helped to significantly reduce the risks of pregnancy.

However, in the media, compatibility issues during conception are far from being fully disclosed and are not always interpreted correctly. Because of this, panic is sown, people have the wrong approach to family planning.

• If a woman cannot become pregnant, it is not the Rh factor or blood type or their incompatibility in partners that is to blame, but immunological incompatibility. This means that there are any components in the partner's sperm that cause immune rejection in a woman.
• If the mother is Rh positive, this cannot affect conception in any way. A Rh conflict can only disrupt healthy gestation or interfere with the development of the fetus, but this is not a reason not to give birth to a healthy baby.
• If partners have different Rh factors, this is not a reason to end the relationship. Such a couple may well give birth to a healthy baby if they listen to all the recommendations of doctors.

As such, incompatibility at conception does not exist. The reasons why a woman cannot get pregnant are not related to incompatibility and may lie in a completely different area.

During pregnancy

If you plan to have a baby, parents should know which blood types are incompatible for pregnancy.

If the mother’s blood is positive, she doesn’t care what kind of Rh the father or the fetus has: she will be able to endure the pregnancy and give birth normally. The following combinations are possible:

• Mom + and dad + = baby +. In this case, everything will pass without complications.
• Mom + and dad + = fetus -. Compatibility will still be, since the mother's body is familiar with all types of proteins.
• Mom + and dad - \u003d child +. Pregnancy proceeds positively, and conflict, as a rule, does not arise.
• Mom + and dad - \u003d baby -. Despite the conflict between partners and the child, there are no complications during pregnancy.

But in the case of a negative Rh in mothers, complications can arise.

The reasons for this incompatibility lie in the characteristics of the human immune system. If a foreign protein enters the body, the immune system begins to fight it. The same applies to a child with a positive Rh.

However, this does not happen during the first conception, since the mother's body has not yet met with foreign red blood cells and is not able to create antibodies.

But with subsequent gestation, complications may arise. They occur because the body has memorized antigens foreign proteins from a previous gestation. Diseases in the mother, such as preeclampsia, diabetes mellitus, uterine tone, can contribute to an increase in the number of antibodies.

As a result of the conflict, the crumbs may develop hemolytic disease, in which antibodies destroy the child's red blood cells. Ultrasound shows an increase in internal organs: liver, spleen, heart.

What to do?

It is difficult to advise unambiguously what to do if the parents have different Rhesus. Of course, it is best if they coincide, but not to destroy the family because of this?

When planning a family, it is best to register with a gynecologist in advance and be under the supervision of doctors. In case of conception and further development of pregnancy, doctors may prescribe:

• plasmapheresis (blood purification from antibodies);
• anti-allergic drugs;
• vitamin therapy.

With the threat of hemolytic on unscheduled ultrasound, the amount of amniotic fluid, antibodies, bilirubin level, etc. is analyzed. It is impossible to say for sure whether a child will have hemolytic disease after birth until the very birth.

If the fetus is the second with negative blood in the mother, after the first birth, anti-Rhesus immunoglobulin is administered to her, which reduces the risk of complications during subsequent gestation. Such women should beware of large blood loss, abortion, since the next conception may not occur.

Now, dear readers, you know what blood types are incompatible for conceiving a child, and to be more precise, the Rh factors of partners and many more things that affect pregnancy.

Take the information into service, think about your health, tune in positively and everything will definitely happen. Just when you least expect it.

A very important parameter for conceiving a child and carrying a normal pregnancy is the blood type, and in particular the Rh factor. Quite often, when trying to conceive, there is an incompatibility of blood types, as a result of which the pregnancy does not start or is interrupted at short notice. Let's take a closer look at this issue and try to understand this situation.

Even before entering into a legal marriage with a young man, a girl who wants to have children should ask in advance: what is his blood type and Rhesus. This parameter is especially important for those female representatives who have a negative Rh factor.

To conceive a child, the compatibility of blood types is evaluated according to a special table. It describes the options in detail.

If, before planning a pregnancy, a woman did not pass a blood compatibility test, then there is a high probability of problems during conception.

However, often, even if pregnancy has occurred and there is a discrepancy between the Rh factor, then such a violation as the Rh conflict develops. This is fraught with such complications as anemia, erythroblastosis, edematous syndrome of newborns (the last 2 lead to fetal death).

Also, quite often there can be a discrepancy not only in the Rh factor, but also in blood groups. In order to prevent such a phenomenon, the blood type must also be checked for compatibility, which is carried out using the table even before conception.

So, it is customary to distinguish 4 blood groups, which differ in the presence of specific proteins:

• 1 (first) "O" - there are no specific proteins;
• 2 (second) "A" - protein A is present;
• 3 (third) "B" - contains protein B;
• 4 (fourth) "AB" - contains both protein type A and B proteins.

As mentioned above, in order to determine the compatibility of blood for conceiving a child, it is enough to use the table. It is with its help that you can determine when there is a possibility of occurrence

So, according to the blood rhesus compatibility table, a conflict is possible at conception in the following cases:

If the mother has group 1, while Rh is negative, then a violation may occur on:

• for group 2 protein (A);
• for group 3 protein (B);

If a woman has group 2 with a negative Rh, then the conflict can be observed on:

• for group 3 protein (B);
• for group 4 protein (B);
• for the Rh protein (positive).

With the third group and negative Rh, there is a reaction to:

• for group 2 protein (A);
• on protein 4 groups (A);
• for the Rh protein (positive).

It is noteworthy that 4 blood type never causes conflict, those. absolutely compatible with any blood group.

Thus, in order to avoid negative consequences when planning pregnancy and conception, doctors use a table to determine blood compatibility, which lists all the possible options in which a violation may occur.

To avoid it, the expectant mother, even at the time of pregnancy planning, must turn to specialists to determine her blood type and Rh factor, if these parameters are not known to her. This kind of simple study will help prevent the violations described above in the future, as well as avoid problems associated with conceiving a child. It is worth noting that it is also important to know these blood parameters of the future father or spouse.

Blood group compatibility is a fairly relevant topic in medicine, and more specifically in the field of family planning. Having learned about pregnancy, the father and mother of the unborn child must first of all do a blood test. This basic test, which determines the blood type and Rh factor, plays an important role in the health and future well-being of mother and baby.

There are four key blood groups (types): O (I), A (II), B (III), and AB (IV). The blood type is inherited at birth and remains for life. Each of the four blood types is classified based on the presence or absence of a protein. These proteins are known as "antigens". Some of them are associated with the blood type, others are responsible for the Rh factor, which is determined by three markers (antigens): D, C and E. The most common is the "D" antigen. In Rh-positive organisms, a substance called the D-antigen is present on the surface of red blood cells. They are called RhD-positive. Rh-negative organisms do not have the "D" antigen in their blood, and such people are called RhD-negative.

The blood type has a very important purpose - it maintains the viability of the whole organism. Therefore, before planning a conception, it is necessary to check compatibility with a partner.

Antibodies are part of the body's natural defense against invading germs and bacteria. They do not recognize anything "foreign" in the body and alert the immune system to get rid of it. Human blood is grouped into four types: A, B, AB, or O. Each letter refers to the type of antigen found. For example, type A has proteins known as A antigens. Each blood type has its own Rh factor (Rh) - positive (Rh+) or negative (Rh−). Worldwide, the most common blood types are O+ and A+. About 85% of the population has Rh +, the remaining 15% - owners of "Rh-"

Rh factor is 50 types of different proteins, if at least one is present, then Rh is considered positive. The child inherits the blood type and Rh factor from the parents. During pregnancy and childbirth, RhD plays an important role when an RhD-negative mother is expecting an RhD-positive baby. This only happens when the child's father is an Rh positive carrier. However, not all babies with an RhD+ father get a positive Rh factor.

Research over the past 40 years has shown that infertility and recurrent miscarriage may be the result of antibodies in a woman's vaginal secretions reacting with blood antigens in male semen.

The problem of incompatibility

The Rh factor is checked by a blood test. "Rh−" poses a threat to a woman in labor if her Rh does not match the Rh of the child. Research has shown that some problems are related to blood type incompatibility between mother and fetus or between parents. As described above, markers (antigens) protect the body from external pests such as bacteria and viruses. When an antigen encounters a foreign object, it creates antibodies against it. The same thing can happen when trying to get pregnant. The body will respond by producing antibodies to the appearance of sperm or fetus, which will prevent conception.

The problem occurs when the Rh of the mother's blood does not match the Rh of the fetus, and the body begins to produce antibodies against proteins on the baby's red blood cells. An Rh-negative woman in labor does not always pose a threat to the development of the fetus:

• if both parents are Rh-negative, and the child also receives "Rh-", then there are no complications;
• if the mother has "Rh−", and the father has "Rh+", and the fetus receives a negative Rh, then there is no threat of conflict;
• if the woman in labor has “Rh +”, and the child has a negative Rh, protein incompatibility will not occur.

The chance of the child inheriting Rh and the probability of conflict in the table.

Rh factor

How does the Rh factor affect pregnancy

Rh problems occur when the mother is Rh negative and the baby is Rh positive. This is called Rh incompatibility. As a rule, such conflicts do not arise during the first pregnancy, but will be possible with subsequent conceptions. If the "Rh+" blood of the fetus is mixed with the negative Rh of the mother during pregnancy or childbirth, then the blood of the woman in labor will begin to create antibodies against "Rh +", as if it encounters harmful substances.

Rh antibodies can cross the placenta and attack the baby's blood. Such actions lead to hemolytic anemia, which destroys red blood cells. In this case, the amount of bilirubin in the blood of the child increases. After birth, the baby has low muscle tone, lethargy and yellowness of the skin and whites of the eyes. Red blood cells are responsible for the presence of oxygen in all parts of the body. If there are not enough red blood cells, the child's body is not enriched with the right amount of oxygen, and hemolytic anemia can lead to serious illness, as well as death of the fetus.

When a woman is carrying a baby, the placenta acts as a barrier between the red blood cells of the mother and the child. There are times when small portions of the baby's blood can enter the blood of the woman in labor:

• most often it happens during childbirth;
• the risk of blood mixing occurs during a miscarriage or during an abortion;
• in situations accompanying pregnancy - as amniocentesis (sampling of chorionic villi);
• with vaginal bleeding or abdominal trauma.

If the future mother has a negative Rh, and the partner has a positive Rh, then the female body may reject the fetus. Only specialists can prevent this phenomenon.

How to avoid problems

If incompatibility is detected, the doctor arranges several blood tests for the still pregnant woman to control the level of antibodies. After birth, the baby's blood is also tested. If the baby is "Rh+", then the mother is offered an injection of anti-D (immunoglobulin) within a few days after birth. Anti-D prophylaxis is taking a drug that prevents a woman's body from producing antibodies against Rh+ cells. Today, Rh sensitization during pregnancy and after childbirth can be largely prevented. For this purpose, prophylaxis is carried out with the help of anti-D-immunoglobulin.

All Rh-negative expectant mothers are offered injections of anti-D-immunoglobulin. This procedure prevents harm from Rh incompatibility..

In general, all pregnant women who are Rh-negative and do not have antibodies to the D antigen are recommended prophylaxis with anti-D-immunoglobulin. This is either one injection between 28-30 weeks of pregnancy, or two - at 28-34 weeks. Such prevention is called current prenatal (antenatal).

The process by which the mother begins to produce antibodies against the D antigen is called potentially sensitizing. Sometimes, after the occurrence of such circumstances, additional injections of anti-D-immunoglobulin are needed. Such situations include the following:

• threatened miscarriage or miscarriage;
• ectopic (ectopic) pregnancy;
• abortion;
• vaginal bleeding;
• obstetric intervention;
• trauma to the abdomen, for example, after a fall or a car accident.

Every event, whether it is vaginal bleeding or abdominal trauma, should be reported to the midwife or attending physician as soon as possible by the woman in labor.

Timely consultation with your doctor is the right step towards trouble-free bearing and the birth of a healthy baby.

What is anti-D

Anti-D-immunoglobulin is produced from a component of donors' blood called plasma. In this case, as with any other medicines made from blood, there is a possibility of transmission of the virus from the donor to the recipient of anti-D-immunoglobulin. However, all donors are carefully screened, and the manufacturing process involves virus removal and destruction to minimize the chance of transmission.

The latest methods of research, treatment and prevention lead to complete control over the pregnancy process, minimizing the risks of complications in case of blood incompatibility. Timely delivery of tests, as well as an appeal to the attending physician, will help prevent the occurrence of any conflict situations.

Video - Pregnancy and Rh blood factor

Pregnancy planning becomes a special event for many parents-to-be. Most of them wonder, how important is the compatibility of blood types for conception? This question worries people, probably, from the moment of the discovery of blood groups, therefore, quite a lot of attention was paid to its study. In the process of birth, the blood of both parents mixes, this is how it is formed in the fetus. At the same time, the baby has a chance to get any group, because at the moment of conception all four blood groups are formed, but their percentage is different. Naturally, the largest percentage is given to parental blood. Therefore, most often the child receives a blood type of one of them. If both parents have the same group, then the possibility of the baby forming it is about ninety-eight percent.

The Rh factor is a specific protein found in erythrocyte cells, regardless of group. If this protein is determined during the analysis, then the blood is positive, and in the absence of it, it is negative.

When determining the presence of the Rh factor in the mother, that is, positive blood, and the father is negative, then the child has a great chance of getting exactly positive blood. In this case, at conception, blood incompatibility may occur. Throughout pregnancy, the body of the expectant mother produces special antibodies, the purpose of which is to fight foreign objects, which may include the body of the unborn child. The result can be attacks of these antibodies on the cells of the fetus. It is these attacks that can become a serious danger to a child still inside the mother's womb. In this case, even the death of a child is possible.

Even if the baby survives and the body repels all these attacks, the course of pregnancy is likely to occur with numerous complications. The expectant mother will certainly experience a number of difficulties, at least she will experience strong manifestations of toxicosis and a noticeable weakening of the body.

The influence of blood features on pregnancy

The entire gestation period will pass without problems if the child's fetus is not perceived by the antibodies produced by the mother's body as a foreign object. It should be noted that if the mother has the first group, then usually the bearing and birth of a child occur without any complications. Moreover, there are no difficulties even if the groups and Rh factors of the father and mother do not match.

The most optimal combinations of blood groups of the father and mother are shown in the table below:

However, if the future parents have mismatched groups, then you should not especially worry, because in this case the conflict does not always arise and, as a rule, the course of pregnancy occurs quite normally.

But the mismatch of rhesus can have much more unfortunate consequences. At the same time, you need to know that the presence of positive blood in the mother almost always allows you to survive the conception and the period of pregnancy without trouble. Even if the father has negative blood, then the Rh-conflict of the child and the mother does not arise, they are completely compatible. In this situation, the child will be born with the presence of protein inside the red blood cells.

If the mother's blood is negative, then it is possible to speak with full confidence about the successful course of pregnancy only if the father has the same blood. Otherwise, there is a high probability that the child will receive negative blood, which will also not cause trouble, but another option is also possible. Problems can arise only if the child and mother have a different Rh factor, however, this does not always happen.

conflict pregnancy

A conflict pregnancy occurs almost inevitably if the mother has a negative Rh factor, and the fetus in the womb is positive. The tragedy of this situation lies in the fact that the mother's body perceives the fetus as a foreign object, and this forces it to make every effort to reject it. This is precisely the reaction of the body, which defends itself and tries by any means to eliminate the foreignness found in itself. In the mother's body, an increased production of antibodies begins, which, after penetrating the placenta, immediately attack the fetus, trying to destroy its red blood cells.

According to the experience of doctors, a conflict pregnancy can end like this:

• miscarriage (loss of fetus);
• excessive work (almost wear and tear) of the spleen and liver of the fetus;
• the development of anemia in a child, which is the result of an abnormal enlargement of the liver, which is overloaded during pregnancy.

It is in connection with the danger of conflict pregnancy that all expectant mothers are recommended to undergo special testing without fail to determine the compatibility of blood at conception. Ignoring this study greatly increases the likelihood of a newborn developing pathologies such as anemia, jaundice, dropsy and mental retardation.

How to avoid the consequences of a rhesus conflict

The conception of a child can occur quite successfully in parents who have an Rhesus conflict. However, in this case, the expectant mother will have to be regularly observed by a gynecologist for the entire period of pregnancy. Only an experienced doctor will be able to determine the necessary measures for the proper development of the fetus, and all recommendations must be followed without question.

What actions will the expectant mother have to take:

• As soon as blood incompatibility is diagnosed in future parents, a chorionic biopsy will have to be taken immediately. With the help of this procedure, the Rh factor of the baby is determined.
• You may need regular administration of immunoglobulin to the expectant mother.
• In some cases, when there is a danger to the life of the fetus or mother, artificial induction of labor may be offered.
• As a last resort, if the fetus still in the mother's womb is at immediate risk, a cordocentesis may be offered by a gynecologist.

Of course, these are only the most common recommendations, there are often more. But even according to these recommendations, which can significantly facilitate the course of gestation in case of a Rh conflict, it becomes clear how important it is to determine the blood type and Rh factor of future parents in a timely manner.

Specificity of blood groups

Today it is generally accepted that the first or zero group is the most powerful and aggressive. People with this group should prefer meat in food and are ideal donors. This group is combined with any others, the main thing is that the Rh factor matches. The second group (A) consists of people who are vegetarians and lovers of berries. The owners of the third group (B) usually prefer cereals and bread.

The fourth group (AB) is considered the most low-quality, but at the same time the most adaptive. Doctors call its owners "universal vampires", which should not be surprising, because if they match Rhesus, they can accept any other group.

Of course, the ideal option for conception would be a complete match in the parents of the group and the Rh factor of the blood, alas, this happens quite rarely. However, loving spouses who want to raise a child will be able to overcome all difficulties and even become parents with Rhesus incompatibility. The main thing is to be observed by good specialists and steadily follow all their recommendations.

There is a table that, with a certain probability, allows you to predict the blood type of the unborn child:

Of course, the exact determination of the blood group of the unborn child is possible only in one case, but even such an approximate prediction is sometimes very valuable.