All Blood Types
Explore detailed information about each of the 8 major blood types, including rarity, compatibility, and characteristics.
O+
Very Common
37% of population
Most common type worldwide
Learn More →O-
Uncommon
7% of population
Universal donor - can give to anyone
Learn More →A+
Very Common
36% of population
Second most common type
Learn More →A-
Uncommon
6% of population
Compatible with A and AB types
Learn More →B+
Common
9% of population
Can receive from O and B types
Learn More →B-
Rare
2% of population
One of the rarest types
Learn More →AB+
Rare
3% of population
Universal recipient - can receive any type
Learn More →AB-
Very Rare
1% of population
Rarest of all common blood types
Learn More →Quick Reference
Most Common
- O+ - 37% (Universal for positive types)
- A+ - 36% (Second most common)
Rarest
- AB- - 1% (Rarest common type)
- B- - 2% (Second rarest)
🩸 O- Universal Donor
Can donate to anyone in emergencies. No antigens means no rejection risk.
Learn about O- →🩸 AB+ Universal Recipient
Can receive from anyone. All antigens present, no antibodies to reject blood.
Learn about AB+ →