A−
The A− blood group.
under 1 in 100 of people in India, a rare group.
Rare and clinically precious, A− units reach four patient groups.
0 active A− donors on the Assam register right now · Need A− blood? start a request →
A− can donate to
O+O−A+A−B+B−AB+AB−
A− can receive from
O+O−A+A−B+B−AB+AB−
How this works in real hospitals.Compatibility above is for red cells, simplified. In practice the blood centre runs a crossmatch before every transfusion, and plasma/platelet rules differ. Final decisions always belong to the treating centre, never self-arrange a match.
A− is rare, the register needs you specifically.
Register once; we contact you only when a compatible patient near you needs blood.
Register as a A− donorWho can A− blood be given to?
A− red cells can go to patients with: A−, A+, AB−, AB+. Compatibility is decided by the blood centre's crossmatch, never self-match.
Who can donate to an A− patient?
A− patients can receive red cells from: A−, O−.
Is A− a rare blood group?
A− is rare in India, under 1 in 100 of the population. Rare-group patients depend heavily on voluntary registers like ours.