For donors
If you have a rare blood group, there may be only a handful of people in your city who can help someone with the same one. Being on a register is what turns that from a search into a phone call.
Who can help
Anyone with a rare blood group, and particularly people with the Bombay (hh) phenotype. If you have been told your blood is unusual or hard to match, you are the person this register exists for.
Not sure of your group? Register anyway and say so. Knowing where to look is useful even before a result is confirmed.
Why your donation is vital
For a common blood group, one donor among thousands can step in. For the Bombay phenotype there may be no substitute at all — not even O-negative, which is safe for almost everyone else but not for someone with this phenotype.
That changes what a single donor means. You are not adding to a supply; for one patient, in one week, you may be the supply. And because the phenotype is inherited recessively, the people who share it are scattered and hard to find by chance. Being findable is the contribution.
What registering involves
It takes a few minutes. We ask for your name, how to contact you, your blood group, and roughly where you are — close enough to match you to a nearby hospital, not your exact address.
Laboratory verification of rare groups is planned for a later phase. Until it exists, entries are marked as self-reported, and coordinators know to confirm before relying on one.
Your privacy, and your control
- Patients never see you. Your name and contact details are visible only to the coordinators handling a request.
- Nothing is published. Your entry does not appear on this website or in any public list.
- You set your availability. Mark yourself unavailable whenever you need to — travelling, unwell, or simply not right now — and back again later.
- You can withdraw permanently. You will not be contacted again.
- You are asked before anything is shared. Every disclosure is specific and refusable — see the Privacy Notice.
What happens after you register
Usually, nothing, for a long time. A rare-blood register is not a regular donation drive — you are contacted when someone nearby needs your specific group, which may be rarely or not at all. That quiet is the system working as intended.
When you are contacted, you are told what is needed and where, and you are free to say no. Saying no does not remove you from the register.
Questions donors ask
How often will I be contacted?
Rarely. Only when a patient needs your specific group nearby, and only while you are marked available.
Is my information public?
No. It is visible only to the coordinators handling a request, and it is never published on this site.
Can I pause without leaving the register?
Yes. Mark yourself unavailable from your account. Your entry stays, and you will not be contacted until you change it back.