2 doctors weighed in:
What are the different blood types?
2 doctors weighed in

Dr. Ankush Bansal
Internal Medicine
1 doctor agrees
In brief: A, B, O, AB
There are 4 types of human blood - a, b, o, ab.
There is also a rhesus (rh) designation: + or -. O- is generally the universal donor and ab+ is generally the universal recipient.

In brief: A, B, O, AB
There are 4 types of human blood - a, b, o, ab.
There is also a rhesus (rh) designation: + or -. O- is generally the universal donor and ab+ is generally the universal recipient.
Dr. Ankush Bansal
Dr. Ankush Bansal
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