In most Indian emergencies, the first donors are family. Yes — relatives can donate for a patient, and knowing the rules before you rush to the hospital saves hours.
The two ways family donation works
- Replacement donation: your family member donates at the hospital blood bank, which credits the patient’s account with that unit. Any group usually counts as credit; the patient receives matched units from stock.
- Directed donation: at some centres, a relative can donate a unit reserved specifically for the patient. Requirements are stricter — compatible group essential, and extra testing may apply. Ask your blood bank if they allow directed units.
The eligibility checklist for your relative (same as everyone)
- 18-65 years, 50 kg or more
- Haemoglobin 12.5 g/dL+
- Well today, no fever/infection, no recent tattoo (6 months), alcohol-free 24 hours
- Full screening questions answered honestly
The group math — read our compatibility guide
- O− donates to every group (the golden relative)
- Same group is always ideal
- A, B, AB family members: check the compatibility table before assuming
One honest caution — backed by transfusion medicine
Family members donating under emotional pressure must still pass the same honesty of screening — a relative hiding an illness to “save” their own family puts that family at risk. And there is a documented medical wrinkle: blood from close relatives carries a rare but real risk of transfusion-associated graft-versus-host disease, because genetically similar blood can mistake the patient’s body for foreign. That is why responsible banks irradiate directed/family units before transfusion — a step not needed for voluntary units. Transfusion medicine’s own conclusion is counterintuitive but firm: a screened voluntary donor’s unit is medically safer for your relative than a loving relative’s.
And when family runs out: the directory and a request on the register exist precisely for that moment.