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A-
Compatible with A and AB types
A negative blood is found in about 6% of people. It has A antigens but lacks the Rh factor. This blood type can donate to both A and AB types, regardless of Rh status.
→ Can Donate To
A+✓ Compatible
A-✓ Compatible
AB+✓ Compatible
AB-✓ Compatible
A- blood can be donated to 4 type(s).
← Can Receive From
A-✓ Compatible
O-✓ Compatible
A- blood can receive from 2 type(s).
Rh Factor
Lacks the Rh factor (D antigen). Rh negative individuals have two negative alleles.
Learn more about Rh factor →Population Frequency by Ethnicity
Caucasian7%
African American2%
Asian0.5%
Hispanic2%
Interesting Facts
- •Can donate to both A+ and A- recipients, plus AB types
- •Particularly rare in Asian populations (only 0.5%)
- •Important for emergency supplies for A and AB patients
- •A- mothers may need RhoGAM during pregnancy if baby is Rh+
Educational Information: This information is provided for educational purposes only. Always consult with healthcare professionals for medical advice, blood transfusions, and pregnancy-related concerns.