RH blood group classification, what kind of blood type RH blood is

RH is the first two letters of the foreign name of the rhesus monkey. In 1940, when Landsteiner and other scientists conducted animal experiments, they found that rhesus monkeys and most human red blood cells had antigenic substances of rh blood group, hence the name.

Any person with rh agglutination on human blood red blood cells is rh positive. Otherwise, it is negative. As a result, the four main blood types of red blood cells A, B, O, and AB have been found to be divided into two types: Rh-positive and negative.

With the continuous study of Rh blood group, it is believed that the Rh blood group system may be the most complex blood group in the red blood cell blood group. The discovery of Rh blood group plays a very important role in guiding blood transfusion work more scientifically, further improving the experimental diagnosis of neonatal hemolytic disease, and maintaining maternal and infant health. According to relevant information, the Rh-positive blood group accounts for about 90% of the Han and most ethnic groups in China, and about 90% of individual ethnic minorities.

In China, only 3 to 4 per 1,000 people have Rh-negative blood type. The ratio of Rh-negative type A, B, O, AB is 3:3

The distribution of rh(-) varies greatly by ethnicity, with a higher proportion of about fifteen percent among Caucasians; Among the Chinese population, the distribution of ethnic minorities such as Xinjiang Uygur rh (-) is 5 percent, the Mongolian people are close to 1 percent, and the proportion of Han people is very small, accounting for only 3 per 1,000, which is a rare blood type.

According to the presence or absence of Rh factor, two blood types can be distinguished, Rh-negative and Rh-positive, and this blood group system is called the Rh blood group system.

Rh blood group is a human blood group system, there are 5 antigens, D antigen is the strongest, so generally the surface of red blood cells containing D antigen is called Rh positive blood.

The Rh blood group system, which contains 5 antigens, namely C, C, D, E, E. All human blood red blood cells containing D antigen (also known as Rh antigen) are Rh positive, otherwise they are negative.

According to the proportion, there are about 5 million "panda blood" people in the country.

The Rhesus blood group system, which means the ionic blood group system, is second only to the ABO blood group system, and mainly refers to the presence or absence of RHD antigens on the surface of human red blood cells

1. Rh+, known as "Rh positive" and "Rh dominant", indicates that human red blood cells have "RHD antigen";

2. Rh, known as "Rh negative" and "Rh recessive", means that human red blood cells do not have "RHD antigen".

The Rh blood group system generally has no natural antibodies, so Rh incompatibility will not be detected during the first blood transfusion. However, after receiving Rh-positive blood, Rh-negative recipients can produce immune anti-Rh antibodies, such as when the Rh-positive blood is transfused again, hemolytic transfusion reactions can occur.

If an Rh-negative mother conceives an RH-positive fetus, the mother produces antiagglutinin (anti-Rh antibody) when the Rh factor from the fetal red blood cells enters the mother's bloodstream for some reason (such as bleeding caused by placental detachment). Antiagglutinin enters the fetal circulation through the placenta, causing the fetus's red blood cells to agglutinate and destroy, which can lead to severe anemia and even death of the fetus.

When the parents of rh+ carry the rh- gene and pass on the rh- to their offspring, the child behaves as rh-; When one of the parents has rh-, the probability of the child having rh- increases, and vice versa.

The Rh-negative blood type is also known as "panda blood" because it is a rare blood type among the Han population.

Rare reasons. A person's blood group is usually determined by antigens made up of certain heritable glycoproteins and sugar chains on the surface of red blood cells. As of now, more than 30 blood group systems like this have been discovered.

For example, the ABO blood group system that everyone is most familiar with is composed of A, AB, B, and O. The Rh blood group system is the most complex of the classified red blood cell blood group systems. In the RH system, if the surface of a red blood cell contains a D antigen, it is called RHD positive, and vice versa.

Existing scientific studies have found that RHD-positive people account for the vast majority of the world's population, and RHD negative is very rare, for example, in Asia, more than 1,000 people are RHD-positive, and less than 5 out of 1,000 people are RHD-negative, so it is called "panda blood".

The RH blood group system is probably the most complex blood group system in red blood cells, second only to the ABO blood group system in clinical importance. Simply put, RH is named after the erythrocyte antigen of rhesus monkeys (Rhe-Suemonsky). There are more than 40 antigens in the RH system, the most common and can be identified by general laboratory methods: D, E, E, C, and C.

These five antigens are also the most closely related to clinical practice, among which D is the most antigenic, causing hemolytic transfusion reaction and neonatal hemolytic disease, and anti-D is the most common.

The RH blood group is a different method from the ABO blood group. Positive for Rh blood group D antigen means that you are Rh positive, and more than 99% of people with this blood type are, and only a small percentage of ethnic minorities are negative. Rh negative belongs to panda blood.

Blood type refers to the type of antigen on the surface of blood components, including red blood cells, white blood cells, platelets. The blood group usually refers to the specific antigen type on the red blood cell membrane, and it is most closely related to clinical practice, and people are familiar with the red blood cell ABO blood group system and the RH blood group system.

HR blood type is a blood type that refers to the presence of HR antigens on the surface of a person's red blood cells. This antigen is unique and can distinguish between different individuals. HR blood can be Rh-positive or negative in the balanced state, and if the HR antigen is negative, the source is Rh-negative blood and vice versa.