AB−
The AB− blood group.
roughly 1 in 250 of people in India, a rare group.
The rarest group in India. An AB− patient in an emergency is almost entirely dependent on registered negative donors.
0 active AB− donors on the Assam register right now · Need AB− blood? start a request →
AB− can donate to
O+O−A+A−B+B−AB+AB−
AB− 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.
AB− is rare, the register needs you specifically.
Register once; we contact you only when a compatible patient near you needs blood.
Register as a AB− donorWho can AB− blood be given to?
AB− red cells can go to patients with: AB−, AB+. Compatibility is decided by the blood centre's crossmatch, never self-match.
Who can donate to an AB− patient?
AB− patients can receive red cells from: AB−, A−, B−, O−.
Is AB− a rare blood group?
AB− is rare in India, roughly 1 in 250 of the population. Rare-group patients depend heavily on voluntary registers like ours.