Is it like this with a positive blood type?

You should be talking about the rh blood type, see below:

Rh blood type, discovered in 1937. It is the most clinically significant blood group after the discovery of ABO blood group, and it is also one of the most complex blood group systems. RH is the first two letters of the foreign name of the rhesus macaque.

Rh blood group refers to the presence of the same Rh blood group antigen substance on the surface of human red blood cells as on the red blood cells of rhesus monkey blood. Any red blood cell in a person's blood that carries the Rh antigen (also known as the D antigen) is called Rh positive. As a result, people with the four main blood types of red blood cells A, B, O, and AB have been divided into two categories: Rh-positive and negative.

The proportion of people with Rh-positive and negative blood types varies according to different races, and people with Rh-positive blood types account for about 90 among the Han and most ethnic groups in China, and individual ethnic minorities are about 90. Therefore, it is not surprising that we often encounter the phenomenon that the stock of Rh-negative blood is difficult to meet the needs of clinical transfusions. Among Caucasians in Europe and the United States, people with Rh-positive blood types account for about 85 percent of the population, and people with Rh-negative blood types account for about 15 percent of the population.

At the time of transfusion, if a patient with an Rh-negative blood type is transfused with Rh-positive blood, a life-threatening hemolytic transfusion reaction may occur due to uncooperative blood type. Early miscarriage, intrauterine stillbirth, and neonatal hemolysis may also occur due to incompatibility between mother and child due to rh blood group incompatibility between mother and child. Therefore, women whose husband's blood type is Rh-positive and Rh-negative should go to the blood bank to check the level of Rh antibodies in the blood under the guidance of an obstetrician and gynecologist after pregnancy, so that timely measures can be taken to prevent miscarriage, stillbirth, or neonatal hemolysis after birth.

In addition, in order to ensure the safety and effectiveness of blood transfusion, Rh-negative patients, especially unmarried or married women who have not yet given birth, must be Rh-negative at the time of blood transfusion, in addition to the same CBO blood group as clinically required.

Ask the doctor? You can get a very accurate answer when you go to the hospital.

What is positive, I didn't make it clear.

Divided into Rh-positive and Rh-negative.

Both have their own blood types A, B, O, AB. However, if the positive and negative blood transfusions are wrong, hemolytic reactions will occur even if they are both type B, which is very dangerous, so be careful.

However, it is not excluded that occasional Rh-negative blood is fortunate not to have hemolytic reactions during the first positive blood transfusion.

99% of the world's population is Rh-positive, and only 1% are negative.

To add: I studied medicine)

If you are type A, then B is feminine, and A is dominant.

Is it a blood test for the liver? That's yin, and it's not good to have yang

--- test report, a negative result indicates that no specific substance or microorganism has been detected (or a very small amount has been detected), a positive result indicates that a specific substance or microorganism has been detected, and a strong positive result indicates that a large amount has been detected. For example, a two-and-a-half test for hepatitis B includes five indicators, each representing a substance (antigen is a protein of the virus, an antibody is a protein produced by you in response to an antigen), and a positive one means that it has been detected. The pregnancy test you are talking about is the detection of chorionic gonadotropin (HCG), which can be detected in the urine on the seventh day of a woman's pregnancy, which causes the placenta to be produced.

If this test is positive, it means that HCG has been detected, and it is likely that she is pregnant, but it is also possible that she has other diseases. If it is negative, it means that it has not been detected, but it does not mean that you are not pregnant!

- A negative on the medical examination form means that no abnormal symptoms were detected, and a positive one means that there are abnormal symptoms (which is the case in most cases).

Suggestion: Negative and positive blood group refers to the presence or absence of "D" antigen in the RH blood group system. There are many types of human blood group systems, the most important ones being the ABO blood group system and the RH blood group system.

There is no positive or negative blood group in the ABO blood group system; Rh positivity in the RH blood group system refers to the presence of D antigen, and RH negative in the RH blood group system refers to the absence of D antigen. Regardless of whether the rh blood group is positive or negative, it is normal. Guidance:

Rh-negative blood should be transfused when a person is given a blood transfusion, which is difficult to find and may make transfusion difficult. In this sense, it is better to be Rh positive. It is recommended not to talk about the word "positive" and worry about what is the disease.

From the perspective of blood type common sense, there must be a link that went wrong, don't dig into it. It's good that the family is in harmony.

There's nothing to worry about, your father's blood type can give birth to four children with different blood types, 25% each. That is, your father's child can have either A or B blood type, AB or O.

Because your father has AB blood type, his children can only have A, B, or AB, three types. Maybe your sister is wrong.

What's so complicated about this, is there any unhealthy thought?