Blood Groups Human blood is classified into four main types based on the presence or absence of certain antigens: A, B, AB, ...
Fact checked by Nick Blackmer Key Takeaways You can learn your blood type through medical records, a blood test, blood donation, or an at-home kit.Knowing your blood type is important for emergencies, ...
Here's three main ways to type your blood: One of the easiest and most effective ways to determine your blood type is to have ...