O- Blood Type
7%
Population frequency worldwide
Can Donate To
O-
O+
A-
A+
B-
B+
AB-
AB+
Can Receive From
O-
Understanding blood type compatibility is crucial for safe blood transfusions. Use our interactive tool to check compatibility between donor and recipient blood groups. Includes comprehensive ABO blood group chart with O-, O+, A+, A-, B+, B-, AB+, and AB- compatibility information.
Detailed compatibility information for each blood type including donation and reception guidelines
People with O-negative (O-) blood type can donate to anyone, making them universal donors. This blood type is crucial in emergency situations when there's no time to determine the recipient's blood type. O- donors are always in high demand at blood banks.
People with AB-positive (AB+) blood type can receive blood from anyone, making them universal recipients. However, they can only donate to other AB+ individuals. AB+ is the rarest ABO blood type combination.