Q:

Can your blood group change?

A:

Quick Answer

In-vivo, the blood group of a person is dictated by genetics and cannot be changed, according to Dr. Mehmet Oz, a professor of surgery at the Columbia University. The reported blood group changes are likely caused by a testing error during the initial test.

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Can your blood group change?
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Full Answer

Scientists found evidence for blood’s capability of changing group type when acted upon by certain bacterial enzymes, the Telegraph reported. This lead to the development of a groundbreaking in-vitro method for converting group A, B, and AB blood to group 0 blood.

Dr. Oz mentions the possibility of a similar mechanism acting within the human body, leading to altered blood group expression. However, this isn't an actual blood group change.

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