♥BloodBanker

Blood type compatibility

Your blood type decides who you can help. Pick yours to see who can receive your red cells and plasma, and which donation does the most good.

Quick answerThere are eight blood types: O−, O+, A−, A+, B−, B+, AB−, and AB+. O-negative is the universal red cell donor and can be given to anyone; AB-positive is the universal recipient and can receive from anyone. Plasma is the reverse: AB is the universal plasma donor. Pick your type below to see exactly who you can help.

Select your blood type:

Type O-

~6% of the U.S. population
Universal red cell donor

O-negative is the universal red cell donor: it can be given to anyone, so hospitals reach for it in emergencies before a patient's type is known. It's also one of the types most often in short supply.

You can give red cells to

O-O+A-A+B-B+AB-AB+

You can receive red cells from

O-

Your plasma can help

Plasma compatibility is the reverse of red cells (and Rh doesn't matter). Your plasma can go to people with type O.

Most valuable donation for you

Whole blood or Power Red

Donate near me →

Red cell compatibility chart

✓ means a recipient (row) can safely receive red cells from a donor (column).

Recipient ↓ / Donor →O-O+A-A+B-B+AB-AB+
O-✓·······
O+✓✓······
A-✓·✓·····
A+✓✓✓✓····
B-✓···✓···
B+✓✓··✓✓··
AB-✓·✓·✓·✓·
AB+✓✓✓✓✓✓✓✓

Explore each blood type

O-
~6% of people
O+
~37% of people
A-
~6% of people
A+
~36% of people
B-
~2% of people
B+
~9% of people
AB-
~1% of people
AB+
~3% of people

Sources & method

The donation guidance on this page reflects published criteria from these organizations. Eligibility and procedures vary by center and country, so confirm specifics with your donation center.

Last reviewed: