AB- blood type
The rarest blood type, at about 1% of people. AB plasma can go to a patient of any type, so AB donors are asked to give plasma and platelets rather than whole blood.
Select your blood type:
Type AB-
~1% of the U.S. populationThe rarest blood type, at about 1% of people. AB plasma can go to a patient of any type, so AB donors are asked to give plasma and platelets rather than whole blood.
You can give red cells to
You can receive red cells from
Your plasma can help
Plasma compatibility is the reverse of red cells (and Rh doesn't matter). Your plasma can go to people with type O, A, B, AB.
Plasma or platelets
The best way to donate if you're AB-
The most valuable donation for AB- donors is plasma or platelets. Learn more about the different ways to donate, then find a center near you.
Sources & method
The donation guidance on this page reflects published criteria from these organizations. Eligibility and procedures vary by center and country, so confirm specifics with your donation center.
- American Red Cross
- AABB (Association for the Advancement of Blood & Biotherapies)
- U.S. Food & Drug Administration — Blood Donation
- Canadian Blood Services
Last reviewed: