Five crucial things you need to know about your blood group

Blood group is one of the more mysterious things about the human body. We all know there are four sections our blood can fall into — A, B, AB, and O. Put together, they represent the four groups of antigens found on red blood cells.

You would think about blood groups when it is time to donate or receive from a donor, but interestingly, it has a lot to do with several functions of your body.