The 4 Main Blood Group Types

Blood groups are classifications of blood according to the occurrence of antibodies and antigen substances on the float-up of the red blood cells. Normally, the presence or lack of certain antigens is used to identify blood types.

Everybody has a unique blood type, which is passed down from parents to children. Commonly classified through the ABO system. This simply means that the blood types of your mother and father determine whether you have the blood group A, B, AB, or O. 

The 4 main blood group types include blood groups A, B, AB, and O. Your blood group is 100% determined by the genes you inherited from your parents, which is why parents should know their blood group types before conception.

Antigens may include glycoproteins, carbohydrates, and proteins. RhD antigen is a protein that can be found on red blood cells as an antigen. This means that if RhD is present, your blood group is RhD-positive and if it is absent,  your blood group will be RhD-negative.

This blog will take you through the 4 main blood group types.

Let us begin.

Blood group Types

There are four main types of blood groups. They include;

  1. Blood group A.
  2. Blood group B.
  3. Blood group AB.
  4. Blood group O.

1. Blood group A

The first blood group is blood group A. This particular blood group has antigens on the red blood cells with anti-B bodies in the plasma. Usually, people with blood group A are considered to have lower stomach acid levels than other blood groups; hence, for them, a vegetarian-based diet may be digested easily compared to meat.

For various reasons, individuals with blood group A as said to have high chances of developing conditions such as cancer.

2. Blood group B

Another blood group type is blood group B. This blood group has antigen B on the surface of the red blood cells, and the plasma has an anti-A Antibody. 

Anti-A antibodies would assail blood cells that contain A antigen positive which is a very important blood type for treating people with thalassemia and sickle cell disease who need Blood on a regular basis.

3. Blood group AB.

Blood group AB is a rare and special blood group because it includes both A and B antigens on the surface of red blood cells. However, because this blood group does not include any antibodies in the plasma, people with the AB blood group type usually have a higher risk of getting stomach cancer

Blood group AB is usually divided into two: AB positive and AB negative.

AB positive is known as the universal recipient because patients with this blood type can receive blood from all other blood group types.

4. Blood group O

Blood group O has neither antigens A nor anti-B antibodies in the plasma. It is the most

important blood group because patients with this group are universal donors, meaning they are eligible to donate blood to persons of all blood group types. 

Note that there are a couple of things that you are required to know before blood donation.

Usually, blood group O negative is used when blood type is not known; It is mostly used in cases of:

  • Trauma.
  • Emergency.
  • Surgery.

People with O-negative blood can only receive blood from O-negative individuals. On the other hand, O-positive is not universally compatible with all types except those with positive red blood cells meaning that people with O-positive blood can only receive from those with O-positive blood.

It is always advisable for people with blood group O to consume high-protein foods such as fish, meat, and limited fruits.

Also, when it comes to losing weight, people with blood group O are advised to avoid spinach, olive oil, broccoli, and snacks that may contain refined sugar. 

Blood group O people are prone to getting systemic sclerosis, tuberculosis infection, and familial Mediterranean fever.

Blood group types and marriage.

One thing is for sure; blood group types highly influence fertility.  For that reason, it is very important for every woman to be aware of their blood group/ type before conceiving. This helps ensure the baby’s health and that of the mother are not at stake due to mixing blood groups and rhesus factors. Besides that, knowing your blood type helps in emergency situations.

A woman’s blood types deeply influence their chances of getting pregnant. In most cases, those with blood group A do not struggle with fertility issues as they easily conceive. However, those with blood group O may find it hard to conceive due to lower egg count and poor egg quality. 

Rhesus factor, on the other hand, plays an important role in a baby’s health; being Rh negative can be a setback if your baby is Rh positive because when a pregnant woman’s blood mixes with the fetus’s blood, it can lead to the creation of antibodies that may damage the fetus’s red blood cells leading to an anemic child.

Wrapping up

It is very vital to know your blood group type. This knowledge is very vital, especially during emergencies such as surgeries. It is also vital before conception to avoid giving birth to children with anemia or other conditions.


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