Question

Can blood type change?

Answer 1

A blood group may be a classification of blood, supporting the presence and absence of antibodies and inherited antigenic substances on the surface of red blood cells. These antigens could also be proteins, carbohydrates, glycoproteins, or glycolipids, counting on the blood type system.

Complete answer:
Usually, you'll have an equivalent blood group all of your life. However, in some cases, the blood types have changed. This has been done as unusual circumstances ,like having a bone marrow transplant or getting certain sorts of cancers or infections.

The ABO blood type system involves two antigens and two antibodies found in human blood. The 2 antigens are antigen A and antigen B. the 2 antibodies are antibody A and antibody B. The antigens are present on the red blood cells and therefore the antibodies within the serum.
Regarding the antigen property of the blood all citizens are often classified into 4 groups, those with antigen A (group A), those with antigen B (group B), those with both antigen A and B (group AB) and people with neither antigen (group O).

The antibodies present alongside the antigens are found as follows:
1. Antigen A with antibody B
2. Antigen B with antibody A
3. Antigen AB has no antibodies
4. Antigen nil (group O) with antibody A and B.

Hence, Blood type can be changed when sharing another Antigens.

Note: There's an agglutination reaction between similar antigen and antibody (for example, antigen A agglutinates the antibody A and antigen B agglutinates the antibody B). Thus, transfusions are often considered safe as long as the serum of the recipient doesn't contain antibodies for the blood corpuscle antigens of the donor.