Every day thousands of people’s lives are saved or improved thanks to the generosity of donors like you.


But, sadly, there are still lots of patients we can’t treat because we don’t have enough supplies. There’s an urgent need for donations. Please help, if you can.

Which blood types are in demand?

Some blood types are in higher demand from hospitals than others.

For example, it’s estimated that around 8% of people have O negative blood, but O negative makes up 13% of requests from hospitals.

This is because anyone can receive the red cells from O negative donors. So O negative red cells can be used in emergencies or when a person’s blood type in unknown.

Sometimes we need to target specific blood types to increase stock levels. That’s why we sometimes contact regular donors with the particular blood type we need, and ask them to give blood.

Why is closely-matched blood important?

Some patients, particularly those who require on-going transfusions, need blood that closely matches their blood type.

This involves matching blood more extensively than the main blood types.

Some rare subtypes are more common in specific communities, which is why we particularly need more blood donors from black, Asian and minority ethnic communities.

Become a blood donor

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