A+ vs. O+: Understanding Blood Types and Compatibility

Type A positive blood:

- Can receive blood from: A+, A-, O+ and O-.

- Can donate blood to: A+ and AB+.

Type O positive blood:

- Can receive blood from: O+ and O-.

- Can donate blood to: A+, B+, AB+ and O+.

Type A positive blood is the second most common blood type in the United States, after type O positive. Type O positive is the most common blood type overall, found in about 37% of the population.