B+

The B+ blood group.

roughly 1 in 3 of people in India.

Among the most common groups in India; steady B+ supply matters every single day.

4 active B+ donors on the Assam register right now · Need B+ blood? start a request →

B+ can donate to

O+O−A+A−B+B−AB+AB−

B+ 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.

B+ is needed every day.

Who can B+ blood be given to?

B+ red cells can go to patients with: B+, AB+. Compatibility is decided by the blood centre's crossmatch, never self-match.

Who can donate to an B+ patient?

B+ patients can receive red cells from: B+, B−, O+, O−.

Is B+ a rare blood group?

B+ is one of the more common groups in India, roughly 1 in 3 of the population, which also means it is needed constantly.

Can B+ donors give plasma and platelets too?

Plasma and platelet compatibility follows different (partly inverted) rules from red cells: AB plasma is universal, O plasma only suits O patients. The blood centre decides what is drawn and who it matches.

Why does the register ask for my blood group?

So patients' families never get pings that can't help: requests reach only compatible donors near them. Don't know your group? Register as “not sure”, camps and centres test it free.

More about B+ and donating

Can I donate?

Age, weight, intervals, deferrals: the NBTC basics.

Rare groups register

Why negative groups run short first in Assam.

Blood components

Red cells, platelets, plasma: what patients actually receive.

Donors in your district