B positive blood type
Your blood type is determined by genes inherited from your parents.
Whether your blood type is rare, common or somewhere in between, your donations are vital in helping save and improve lives.
You can register to give blood online
How rare is B positive blood?
1 in 13 donors is B positive
This means only 8% of donors have B positive blood.
In total, 10% of people belong to blood group B, making it one of the least common blood groups.
Who can receive B positive blood?
B positive and AB positive patients
B positive red blood cells can be given to people with:
- B positive blood
- AB positive blood
What blood can B positive people receive?
Blood from groups B and O
People with B positive blood can receive donations from:
- B positive donors
- B negative donors
- O negative donors
- O positive donors
Why is B positive blood important?
It helps treat sickle cell disease
B positive is an important blood type for treating patients with sickle cell disease and thalassemia who need regular transfusions.
These conditions affect South Asian and Black communities where B positive blood is more common.
There is currently a very high demand for B positive donations with the subtype Ro.
Approximately 2% of donors have this rare subtype and we need more.
Find out why the Ro subtype is so important
Become a blood donor
Want to become a donor?
What's your blood type?
Find out your blood type at one of our events
Blood type materials
Cards and fact sheets about different blood types to download and share