B Positive (B+)
B positive (B+) is less common and can donate to B+ and AB+ patients. It can receive from B+, B-, O+ and O-.
How common in the US: 8%
Can donate to
B+AB+
Can receive from
B+B-O+O-
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Key traits
- B antigen and Rh (D) antigen
- Has anti-A antibodies
- Can donate to B+ and AB+
- Can receive from B+, B-, O+ and O-
Donating this type
- Because it is less common, B patients rely on fewer compatible donors
- B+ donors are important for this type's supply
- Some ethnic groups have a higher share of this type
This information is general and does not replace advice from a health professional. Your eligibility is always decided at the donor screening on the day of donation. Rules change, so confirm with the American Red Cross or the blood center where you plan to donate.