B- blood type
Only about 2% of people are B-negative, so your donation is harder to replace when a B-negative patient needs it.
Quick answerType B- can donate red cells to B-, B+, AB-, AB+ and can receive red cells from O-, B-. About 2% of people are B-. The most valuable donation for B- donors is power red or platelets.
Select your blood type:
Type B-
~2% of the U.S. populationOnly about 2% of people are B-negative, so your donation is harder to replace when a B-negative patient needs it.
You can give red cells to
B-B+AB-AB+
You can receive red cells from
O-B-
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 B, O.
Most valuable donation for you
Donate near me →Power Red or platelets
The best way to donate if you're B-
The most valuable donation for B- donors is power red 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 and Drug Administration, Blood Donation
- Canadian Blood Services
Last reviewed: