Every so often Carter BloodCare asks the O negative blood donors in our community to step up and give to help boost the supply. This request in no way implies that other blood types are not valuable. It’s just that O negative blood is more in demand, and more often in short supply.
If you’re O neg, you’re rare! Only 7% of the world’s population is O neg. You’re also the universal red blood cell donor, which means your blood can be transfused to patients with other blood types. (Incidentally, if you are O neg, you can only receive O neg blood.) What makes O neg the universal type is that there are no A, B or D (Rh positive) antigens present on the red blood cells. This is why it’s compatible with other types, and why O neg blood is often used for emergencies and accidents, when there’s no time for blood typing before transfusion.
We appreciate all our donors, regardless of type. But it’s understandable why our O neg support is so vital to the community supply and why we often ask for help from this group. Help us spread the word- and keep giving often!