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Blood group 2 is Rh factor positive. Conception (Rh blood factor)

Blood is the liquid internal medium of a person. It continuously circulates through blood vessels - veins, arteries, capillaries - providing oxygen and essential nutrients to all our organs and tissues. Blood is very important for proper functioning of the body.

According to the ABO system, several blood groups are distinguished:

0 - 1st group,
A - 2nd group,
B - 3rd,
AB - 4th

The difference between them is determined by the presence of specific antibodies and antigens.

Next, the groups are divided by Rh factor. This antigen is a special protein that is present in red blood cells. People who have this protein are Rh positive, but if there is no protein in their blood, they are Rh negative.

Blood type is inherited from parents to children and appears in the prenatal state. It is constant and does not change throughout life. It is believed that blood type has an effect not only on human health, but also on temperament and character.

Initially, there was only one blood type on Earth - the first. The 2nd group appeared approximately 25,000 - 15,000 BC. It was formed during a period when humanity was moving from a hunting-gathering lifestyle to agriculture. The change in lifestyle also led to changes in nutrition - food became more varied, preference was given to a plant-based diet.

Nutrition

Those with blood type 2 are born vegetarians. Studies have shown that people in this group have a delicate digestive system and low stomach acidity.

Therefore, in order to avoid problems with excess weight and various diseases, people with positive blood group 2 are advised to reduce the consumption of meat products, whole milk and wheat.

Preference should be given to fruits, vegetables, and freshly squeezed juices. Replace meat with soybeans, eggs, sometimes you can use white lean meat - chicken, turkey. It is advisable to limit the consumption of carbonated drinks, strong black tea and alcohol. And here's the coffee has beneficial effects on the body of people with 2nd positive blood group.

Physical exercise

People with this blood type are not recommended to engage in strenuous sports. It is better to choose something calmer, for example, yoga, callanetics, Pilates. Regular leisurely walks in the fresh air will be very useful for both men and women with blood group 2.

Men with this blood type

Men with this blood type become wonderful family men. These are romantics. By nature they are gentle, faithful, caring, and love children. This type is not prone to aggression. For them, such factors as stability, decency, and reliability are important in life. True, they can be stubborn and somewhat conservative.

The Rh factor is not of particular importance for men in this group and does not have a big impact on character or health.

Women

Owners of the 2nd blood group are shy, suspicious and jealous. They make good wives - caring, faithful, love comfort and know how to run a household. The character of these women is calm, they are balanced and patient. But their sexual temperament is poorly developed and the intimate side of marriage does not interest them too much.

For a woman with blood group 2, only a negative Rh factor is dangerous, since it can lead to problems with pregnancy and the health of the child. Women with positive Rh should not be afraid in this regard.

Compatibility

Transfusion

Knowing your blood type and Rh factor is very important for every person. Previously, this was not taken into account during transfusion, but now doctors carefully ensure that the blood is compatible according to such criteria as:

blood type of the patient and donor,
everyone's Rh factor,
individual compatibility,
make a biological test for compatibility.

A special diagram has been drawn up to show which blood groups are combined. According to this diagram, it can be seen that the 2nd group is suitable for donor blood from the 1st and 2nd, and the 2nd and 4th can receive the 2nd group.

When transfusing, the Rh factor is also taken into account. It is believed that a Rh-positive patient can be transfused with Rh-negative blood, but vice versa is strictly prohibited. But this is done only in an emergency; doctors try to ensure that compatibility is complete.

Conception

When planning a baby, many couples think about the compatibility of their blood, because this determines how the pregnancy will go, as well as the health of the child. Compatibility is considered ideal when the parents have the same blood type and Rh factor.

If the expectant mother is Rh negative and the father is Rh positive, then the woman should be more attentive to her condition during pregnancy. This combination can lead to miscarriage or health problems for the baby. But this only happens if there is a Rh conflict between mother and fetus.

They think the baby will be born healthier, if the future father has a higher group affiliation than the mother. For example, if a woman has a second blood group, then the child will be healthier when the father has a third or fourth group.

Relationship

People with positive blood type 2 love harmony and order in everything. This is a man of duty. They are calm, reliable, and can adapt to any situation. Sensitive, stubborn, unable to relax.

Most favorable relationships arise t between representatives of the same blood group and Rh factor.

Harmonious love relationships will be between people with the second and first blood groups.

The relationship between the 2nd and 4th blood groups is more complicated. They cannot be together for a long time.

Also, conflicts can arise between the second and third blood groups - the temperaments are too different.

Heredity

Blood type is inherited and this happens according to certain laws of genetics. Moreover, the child’s blood type may differ from that of the mother or father. This happens because parents pass on to their child only one gene, which is responsible for its formation. As a result, there are three options: the baby's blood type will be: mom’s, dad’s or the third one, which turned out in combination.

Gregor Mendel drew up laws by which one can calculate the heritable blood type. Using these principles, you can independently find out which group your child will be born with.

So, if both parents have blood type 2, then the child will most likely be born with the same group, although there is 25% of the birth of a child with blood type 1.

In the case when one of the parents has the 2nd and the other the 1st blood group, then there is a 50% to 50% chance that the child can inherit both the mother’s blood group and the father’s.

If one of the parents has the 2nd and the other the 4th group, then the child cannot have the 1st blood group. 50% that there will be a second and 25% each a third or fourth group.

The most unexpected combination in terms of heredity they give the 2nd and 3rd groups. In this case, a child with any of the four blood groups can be born.

With the inheritance of the Rh factor, everything is not so simple. Only if both parents are Rh negative can we say that the child will also have it. In all other cases, an unexpected result is possible. The Rh factor can also be passed on through generations.

The materials are published for informational purposes only and are not a prescription for treatment! We recommend that you consult a hematologist at your medical institution!

What characterizes the second positive blood group? This is the presence of antigen A, antibody B, and Rh antigen Rh. Documentedly, its formula is written with the symbols A(II) Rh+.

What characterizes the second positive blood group? This is the presence of antigen A, antibody B, and Rh antigen Rh. Documentedly, its formula is written with the symbols A(II) Rh+. This is the second most common blood type, which is determined in 30-40% of the population in different countries. It can be inherited if at least one of the parents has antigen A in their blood, that is, groups 2 and 4, with the exception of when both have the fourth group AB. The Rh antigen is inherited with an average probability of 50%.

Peculiarities

Traditionally, people with the second positive blood group were considered “farmers”, engaged mainly in agriculture. There is a stereotype of a person who has high performance, physical strength and patience. Such people are able to endure everyday difficulties and adapt well to climate change and new living conditions.

Men in this group are characterized by a commitment to family values, caring for children and parents, and they often sacrifice themselves for the good of their loved ones. They are romantics by nature, love nature and are somewhat naive. Women of this type are shy and modest; they are wonderful wives, mothers and homemakers.

The disadvantage of this type of group affiliation is excessive patience, which sometimes gives way to emotional breakdowns, hindsight and short-sightedness. Such people are good support and support, but they do not have leadership qualities. Excessive hard work and frequent fatigue, the habit of denying oneself rest often lead to the development of a number of diseases. They are also believed to be capable of becoming addicted to alcohol.

Health

Holders of the second positive blood group, subject to a normal rhythm of life, in principle, have good health and can be long-lived. Sufficient physical activity and a healthy diet contribute to this. There are 2 factors that lead to diseases: physical fatigue and excessive nervous tension due to patience. All this can sooner or later “break through” into diseases:

cardiovascular system (vascular crises, heart rhythm disturbances, myocardial infarction);
diseases of the digestive system (biliary dyskinesia, gastritis, ulcers, colitis);
allergic diseases (urticaria, Quincke's edema, allergic dermatitis, rhinitis);
cardiopsychoneurosis;
neurotic-depressive conditions;
psoriasis, neurodermatitis;
development of tumors, including malignant ones;
addiction to alcohol, drugs.

All this pathology is directly related to increased physical and psycho-emotional stress, which ultimately leads to a general weakening of the body, impaired immunity, including anti-cancer immunity, emotional breakdowns and related problems.

Nutrition

The diet recommended for people with a positive blood type has been time-tested and will help prevent many diseases. Its essence is as follows. Taking into account the physiological characteristics, plant foods should prevail. A variety of vegetables and cereal porridges and soups should predominate. Fats should also be of plant origin. It is better to use unrefined oils - olive, sunflower, flaxseed - in salads and cereals.

You can eat a variety of fruits without restrictions. The most useful are apricots, citrus fruits, pineapples, bananas, rich in potassium and ascorbic acid, necessary for the heart and blood vessels. Chokeberry is also useful. A variety of drinks are also recommended, including tea and coffee, but in moderation. Dairy products should be low in fat.

Ideally, it would be good to exclude meat from the diet, replacing it with fish and seafood. But if you still cannot do without it, then you need to choose something that is not fatty and does not contain difficult-to-digest fats, from which cholesterol is then formed.

You should exclude foods that contribute to weight gain:

fatty dairy products, butter;
beans;
mushrooms, eggplants, potatoes;
confectionery, baked goods;
sweet carbonated drinks.

Pregnancy

Pregnant women with Rh-positive blood group 2 should not be afraid of any immune conflict with the fetus. Reactions occur extremely rarely if the fetus has inherited B antigens (3rd and 4th blood groups) from the father, but they, as a rule, are not severe. In any case, the doctor observing the woman determines the group affiliation of both parents, monitors the tests and her state of health, and if necessary, sends her for an immunological study.

Antigens of human blood groups were discovered about a century ago, but even today interest in their study has not waned. Red blood cell antigens perform various functions in the human body. In numerous monographs on transfusiology, the emphasis is usually placed on methods for studying the ABO blood group and the Rh-type of human blood.

At one time, there was a kind of fascism based on blood types: according to this characteristic, children were divided into subgroups in kindergarten, classes in school, and even when a person was hired, they were recorded in a special column in order to assess the person’s temperament and abilities for a particular position. It is noteworthy that the second human blood group was highly valued. It is interesting to note that less than a third of Europeans and Americans know their group and Rhesus; among Asians this figure reaches 90%.

In this article we will consider the second positive group. This group arose in humans approximately 25,000-15,000 BC. e. Now the concentration of owners of this blood group is typical for Western Europe; in total there are 25-30% of them in the world. The smallest number of its representatives is located in Southeast Asia.

According to the AB0 method, this group is marked with the letter “A” and the sign “+” is written (because it has antigen A and a positive Rh factor). For example, “A+” is written on the chest stripes on military uniforms. According to international rules, only letters are used to indicate a person's blood type, not Roman numerals. The Rh-positive group is recognized because those who have it have the D antigen, which was discovered in 1940.

Antigens develop on red blood cells even before human birth (found on a 37-day embryo), but fully mature only a few months after the birth of the child. The membrane of one erythrocyte can contain up to a million antigenic determinants. The number of determinants of Rh system antigens varies from 10,000 to 85,000 per red blood cell (the more there are, the easier it is to identify the antigen in the agglutination reaction).

Blood type and Rh do not change throughout life. Antigen A is chemically a glycolipid. Its determinant differs from the determinants of other antigens by terminal sugars attached to the main chain (α-N-acetylgalactosamine). In 1911, it was established that there are two subgroups of the A antigen: A1 and A2. Among European residents, 80% of carriers of the second group have the A1 subgroup, the remaining 20% contain the A2 subgroup.

A person can get a positive Rh factor and group A from one of their parents (or from both). How donors are suitable for people with the second and fourth positive groups. As a recipient, they are compatible with the first and second positive and possibly negative blood groups. According to the official website of the Ivanovo Blood Transfusion Station, there is now an acute shortage of donors of the second group with a positive Rh factor.

Medical Features

Carriers of the second positive blood group have a tendency to anemia and stomach cancer due to low acidity caused by a lack of vitamin B12 in the body, the absorption of which requires a considerable amount of stomach acid, they are characterized by lung tumors, diseases of the uterus and heart. But these people are more resistant to infections characteristic of densely populated areas (smallpox, plague, cholera). Neuroscientists at the University of Sheffield (UK) have proven the connection between blood type and brain volume. Having measured the level of intelligence quotient (IQ) of representatives of all groups, we noticed that carriers of the second positive group showed an average IQ (similar to the first group): higher than that of the fourth (1.3%), but lower than that of the third (4% ).

Those with each blood type have a unique path to recovery. Blood has a great influence in the nutrition of the body, so a hypothesis arose that with the help of blood characteristics it is possible to determine differences in the gastronomic needs of people.

After a multi-year study involving a significant number of patients, it turned out that food with a high protein content (if it comes from large portions of meat) worsened the health of carriers of Rh A blood, but when switching to plant protein (vegetables, soy, tofu), the well-being of these people improved. Dairy products caused profuse mucous discharge in their paranasal sinuses and respiratory tract. When engaged in active physical exercise, such people felt a loss of strength and malaise, but during low-intensity exercise (yoga) they became more cheerful.

Psychological aspects

From a psychological point of view, people of this group have a number of character traits: planning, cooperation, non-conflict, responsibility. Japanese psychologist Nomi based on 25 years of observations and analysis of the character traits and blood groups of her friends (little attention was paid to the Rh factor). Many of Nomi’s suggestions are recommended for use in developing team management methods. About the group discussed in our article, he wrote that “it’s difficult for people with such a character, because they pay attention to little things and details, are hardworking and diligent, calm and neat, they are excellent performers.”

According to research on students of the West Kazakhstan Medical College, the vast majority of A+ people are sanguine (39%) and phlegmatic (23%), that is, they have a stable type of nervous system.

Such character traits are due to the fact that the second group arose with the transition of humanity from hunting to agriculture, and farmers are characterized by patience and an accommodating nature when growing crops.

Scientists do not stop conducting research in the field of hematology on the influence of the composition of the blood substance on the vital functions of the human body. It should be noted that they have made sufficient progress in their work. In addition to studying all the formed elements of the bloodstream and the effect of substances entering the blood on the physical state, researchers tracked the relationship between blood type and character, diet, susceptibility to diseases of specific organs and other characteristics of a person. It will be interesting to find out how blood type 2 affects the human body, and what its characteristics are.

A brief excursion into the history of the origin of the second blood group

The second bloodstream group arose approximately 20–25,000 years ago, more than ten thousand years after the first category. Such changes in blood composition are associated with the active transition of humanity to agricultural labor, changes in nutrition and habitat. In the course of agricultural crafts, people evolved and moved from an appropriating economy to a producing one. Specifically, that is, from a commercial source of subsistence to nutrition through the cultivation of cereals, fruit and berry crops.

The change in nutritional structure could not but affect the blood substance. Because the new products had a completely different set of nutrients from meat. They, in turn, made changes to the saline solution flowing through the circulatory system. They also contributed to profound structural changes in the gastrointestinal tract, immune, endocrine and other systems of the human body. Modification of the digestive system allowed the Neoliths to better assimilate the cereals and other products of agricultural labor they cultivated.

Psychological portrait of a person with the second bloodstream group

The development of agricultural activity was reflected in the communal system - communities began to be organized with orderly internal relationships.

This influenced the formation of psychological types of people involved in agriculture, with certain personality traits clearly emerging.

It has been noted that representatives of blood category II share the following features:

hard work;
reliability;
integrity;
goodwill;
discipline;
law-abiding;
sociability;
over-caution;
diplomacy;
resourcefulness, ingenuity;
calmness and patience;
inability to relax;
excessive precautions;
ability to organize people;
the ability to easily adapt to changes in the environment;
persistence in achieving plans.

Behavioral factors are determined by the way of existence in society, diplomatically interacting with people around them. In the process of working together, people learned to communicate correctly with each other, without resorting to radically militant methods, as was customary among races with the first category of blood. As you know, joint work unites, and this is what contributed to the emergence among farmers of flexibility in communication with each other, mutual respect, decency and a host of other useful, moral qualities.

Those with blood category II are able to solve foreign problems better than their own. Therefore, they make excellent public, political or administrative figures. And in addition to this, they find application in psychology, diplomacy, teaching, medicine and other fields. Their main advantage is their talent for finding a peaceful way out of any conflict situation. Those with “agricultural” blood create a comfortable microclimate around themselves at home and in any group.

What diseases are people with blood group 2 prone to?

Knowing your blood type and its characteristics, you can successfully manage your physical and emotional health, as well as longevity. The category of blood flow determines a person’s resistance to various pathologies. And, including the weaknesses of the body, that is, what diseases it is prone to.

Predisposition to diseases of persons with blood fluid group II:

Cholecystitis.
Leukemia.
Oncology.
Rheumatoid polyarthritis.
Deviations in liver function.
Bronchial asthma.
Infectious processes.
Type 1 diabetes.
Gallstone pathology.
Allergies with skin manifestations.
Coronary heart disease and other pathologies of the cardiovascular system.

“Forewarned is forearmed,” says the well-known proverb, which also applies in this case. If a follower of blood flow group II knows his imperfect aspects of physical health, then he will be able to keep them under control. This will allow timely implementation of the necessary measures for prevention or treatment at the initial stage of the above pathological conditions.

Properties of the second blood flow group

The red blood cell membrane contains a certain amount of proteins and carbohydrates, which are called antigens. The main characteristic feature due to which the second blood group differs from the others (1, 3 and 4) is the presence of the antigenic property of erythrocytes of type A and the presence of beta agglutinin in the plasma fluid. Therefore, blood group 2 according to the AB0 system is usually designated II (Aß).

In addition to formed blood particles, various biological substances, antibodies and agglutinogens, a surface antigen may be present in the human bloodstream, which indicates the presence or absence of the Rh factor (Rh). If there is an erythrocyte antigen, then such a blood substance is positive (Rh +). And in the absence of a specific antigen on the surface of red blood cells, the blood is Rh negative (Rh −).

The second positive blood group is not rare; it prevails in prevalence after the leading first blood. The number of people with 2 positive blood group in percentage terms is more than 35% among all representatives of the race living on the planet. Persons with blood of the second group with a positive Rh factor are suitable as donors for anyone with the same category II (A) or less often IV (AB) with Rh (+).

But for a blood transfusion, a person with an “agricultural” blood type will need type A or 0 plasma.

The situation is approximately the same when the recipient has a negative blood group. The only difference is that a person with the second negative category of blood flow can be a donor for groups II (A), IV (AB) with both positive and negative Rh factor. And for a recipient with a second negative blood group, plasma with antigen A or its absence, that is, I (0), strictly with Rh (−) is suitable.

Blood groups 2A in men and women do not differ by gender. Differences exist only in the biological fluid itself in the composition of red blood cells, hormones, hemoglobin and some other substances. Therefore, when transfusing blood material, the compatibility of groups, Rh factors and other blood flow indicators is monitored, which can be easily checked by introducing a small amount of plasma sample.

Nutrition for representatives of the second category blood

Blood type A involves eating mainly grains, vegetables and fruits. Consumption of animal meat is not beneficial, but only harmful. Poultry, fish, seafood, cottage cheese, eggs, and legumes can serve as a source of protein.

The basis for maintaining the correct balance in the diet lies in two directions:

The maximum number of products should consist of those that are beneficial for people of blood group 2.
A moderate amount of neutral products is allowed for people with an “agricultural” type of blood flow.

The system for separating group blood parameters greatly simplifies understanding the characteristics and needs of your own body. Now it becomes clear that knowing your blood flow indicators, namely the group and Rh factor, is necessary not only to properly bear children, with regards to women, or in emergency cases during blood transfusion. Thanks to this knowledge, each person can understand the characteristics of his personality. How, by adjusting your diet and lifestyle, you can avoid those pathologies to which he is prone due to the characteristics of his body, in this case, blood type.

In contact with

Blood is the internal environment of the body, formed by liquid connective tissue. Blood consists of plasma and formed elements: leukocytes, erythrocytes and platelets. Blood group is the composition of certain antigenic characteristics of red blood cells, which are determined by identifying specific groups of proteins and carbohydrates that make up the membranes of red blood cells. There are several classifications of human blood groups, the most significant of which are the ABO classification and the Rh factor. Human blood plasma contains agglutinins (α and β), human red blood cells contain agglutinogens (A and B). Moreover, only one of proteins A and α can be contained in the blood, as well as proteins B and β. Thus, only 4 combinations are possible that determine a person’s blood type:

α and β determine blood group 1 (0);
A and β determine blood group 2 (A);
α and B determine blood group 3 (B);
A and B determine blood group 4 (AB).

Rh factor is a specific antigen (D) located on the surface of red blood cells. The widely used terms “Rh”, “Rh-positive” and “Rh-negative” refer specifically to the D-antigen and explain its presence or absence in the human body. Blood group compatibility and Rh compatibility are key concepts that are individual identifiers of human blood.

Blood group compatibility

The theory of blood group compatibility arose in the mid-20th century. Hemotransfusion (blood transfusion) is used to restore the volume of circulating blood in the human body, replace its components (erythrocytes, leukocytes, plasma proteins), to restore osmotic pressure, in case of hematopoietic aplasia, infections, burns. The transfused blood must be compatible both by group and by Rh factor. The compatibility of blood groups is determined by the main rule: the donor’s red blood cells should not be agglutinated by the plasma of the receiving party. Thus, when agglutinins and agglutinogens of the same name (A and α or B and β) meet, the reaction of sedimentation and subsequent destruction (hemolysis) of red blood cells begins. Being the main mechanism of oxygen transport in the body, the blood stops performing its respiratory function.

It is believed that the first 0(I) blood group is universal, which can be transfused to recipients with any other blood group. The fourth blood group AB(IV) is a universal recipient, that is, its owners can be transfused with blood of any other groups. As a rule, in practice they are guided by the rule of exact compatibility of blood groups, transfusing blood of one group, taking into account the Rh factor of the recipient.

Blood type 1: compatibility with other groups

Holders of the first blood group 0(I) Rh– can become donors for all other blood groups 0(I) Rh+/–, A(II) Rh+/–, B(III) Rh+/–, AB(IV) Rh+/–. In medicine, it was customary to talk about a universal donor. In the case of 0(I) Rh+ donation, the following blood groups can become its recipients: 0(I) Rh+, A(II) Rh+, B(III) Rh+, AB(IV) Rh+.

Currently, blood group 1, whose compatibility with all other blood groups has been proven, is used for blood transfusion to recipients with a different blood group in extremely rare cases in volumes of no more than 500 ml. For recipients with blood group 1, compatibility will be as follows:

with Rh+, both 0(I) Rh– and 0(I) Rh+ can become a donor;
with Rh–, only 0(I) Rh– can become a donor.

Blood type 2: compatibility with other groups

Blood group 2, whose compatibility with other blood groups is very limited, can be transfused to recipients with A(II) Rh+/– and AB(IV) Rh+/– in case of negative Rh factor. In the case of a positive Rh factor Rh+ group A(II), it can only be transfused into A(II) Rh+ and AB(IV) Rh+ recipients. For those with blood type 2, compatibility is as follows:

with its own A(II) Rh+, the recipient can receive the first 0(I) Rh+/– and the second A(II) Rh+/–;
with its own A(II) Rh–, the recipient can only receive 0(I) Rh– and A(II) Rh–.

Blood group 3: transfusion compatibility with other groups

If the donor is the owner of blood group 3, the compatibility will be as follows:

with Rh+, the recipients become B(III) Rh+ (third positive) and AB(IV) Rh+ (fourth positive);
at Rh–, the recipients become B(III) Rh+/– and AB(IV) Rh+/–.

If the recipient is the owner of blood group 3, the compatibility will be as follows:

for Rh+, donors can be 0(I) Rh+/–, as well as B(III) Rh+/–;
in case of Rh–, holders of 0(I) Rh– and B(III) Rh– can become donors.

Blood type 4: compatibility with other groups

Holders of positive blood group AB(IV) Rh+ are called universal recipients. So, if the recipient has blood type 4, the compatibility will be as follows:

for Rh+, donors can be 0(I) Rh+/–, A(II) Rh+/–, B(III) Rh+/–, AB(IV) Rh+/–;
for Rh–, donors can be 0(I) Rh–, A(II) Rh–, B(III) Rh–, AB(IV) Rh–.

A slightly different situation is observed when the donor has blood type 4, the compatibility will be as follows:

with Rh+ there can be only one recipient AB(IV) Rh+;
with Rh–, recipients can become owners of AB(IV) Rh+ and AB(IV) Rh–.

Compatibility of blood groups for conceiving a child

One of the key meanings of compatibility of blood groups and Rh factors is conceiving a child and carrying a pregnancy to term. The compatibility of partners' blood groups does not affect the likelihood of conceiving a child. The compatibility of blood groups for conception is not as significant as the compatibility of Rh factors. This is explained by the fact that when an antigen (Rh factor) enters an organism that does not have it (Rh negative), an immunological reaction begins in which the recipient’s body begins to produce agglutinins (destructive proteins) to the Rh factor. When Rh-positive erythrocytes re-enter the blood of an Rh-negative recipient, agglutination (sticking) and hemolysis (destruction) reactions of the resulting erythrocytes occur.

Rh conflict is the incompatibility of the blood groups of the Rh-negative Rh– mother and the Rh+ fetus, which results in the breakdown of red blood cells in the child’s body. The baby's blood, as a rule, enters the mother's body only during childbirth. The production of agglutinins to the child's antigen during the first pregnancy occurs quite slowly, and by the end of pregnancy it does not reach a critical value that is dangerous for the fetus, which makes the first pregnancy safe for the child. Rh conflict conditions during the second pregnancy, when agglutinins are preserved in the Rh mother’s body, are manifested by the development of hemolytic disease. For Rh-negative women after their first pregnancy, it is recommended to administer anti-Rhesus globulin in order to break the immunological chain and stop the production of anti-Rhesus bodies.

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