The Most Blood Groups In The World To The Rarest Types

YOGYAKARTA - The most blood class in the world is positive O blood type (O+). Based on global medical research, about 37-40 percent of the world's population has this blood type. This makes O+ blood type the most easy to find in various countries.

Everyone has different blood types due to genetic factors derived from their parents. Therefore, not all blood types have the same population, there are even very rare types. The following will be discussed about the most blood types in the world to the rarest blood type.

The best known blood type system is the ABO system, which divides blood into four main types: A, B, AB, and O. Each blood type has differences in the antigen structure and antibodies in the blood plasma, which determines compatibility in blood transfusions.

Apart from the ABO system, there is also a Rhesus (Rh) factor that distinguishes whether a person has positive Rh (+) or negative Rh (-3). The combination between ABO and Rh systems produces eight types of blood, namely A+, A), B+, B-based, AB+, AB-based, O+, and O-Table.

Blood group O occupies the top position as the most blood type in the world. Around 37-40 the global population has positive O blood type, while only about 6 percent have negative O. This negative O blood group is known as a universal donor because it can be donated to all blood types.

Blood group A ranks second after O with a total of about 30 percent of the world's population. People with blood type A are known to have antigen A on the surface of red blood cells and antibodies to antigen B in their plasma.

Next is blood type B, which covers about 20 percent of the world's population. People with blood type B have antigen B and antibodies to antigen A, making it unique in terms of donor compatibility.

AB blood group is the rarest in the world, only about 4-5 percent of the population owns it. Interestingly, AB blood group owners are referred to as universal recipients because they can receive blood from all other groups without immune reactions.

That's the explanation of the most blood types in the world. Blood group O occupies the first position, while blood type AB is the rarest blood type in the world. Knowing blood type is not only important for transfusions, but also for understanding a person's genetic factors and health potential.