If you are aged 31 or over you can join a different UK registry; you only need to join one register. The two other registers are NHS Blood and Transplant and DKMS

• NHS Blood and Transplant - If you're already a blood donor, or willing and eligible to give blood, you may be able to join the NHS stem cell register. Their email is customer.services@nhsbt.nhs.uk.

• DKMS UK - DKMS UK registers people aged 17-55. You can sign up online, or at a recruitment event. Their email is info@dkms.org.uk.