Medical Oncologist
Blood counts
Arranging blood donors
Many Indian hospitals run a replacement donor system: the blood bank issues units for your treatment and the family brings donors to replace what was used. You are not buying blood, and the donors usually do not have to match your group — which surprises almost everyone and opens the pool enormously. Start building the list before you need it.
NG
Medically reviewed by Dr. Naresh GunduConsultant Medical Oncologist · MBBS, DNB (Internal Medicine), DM (Medical Oncology, AIIMS) · last reviewed September 2026, next review due September 2027
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The short answer
Why are you being asked to find donors?
Because many Indian hospitals run a replacement donor system. The blood bank issues units for your treatment, and the family is asked to bring donors to replace what was used, keeping the bank stocked for everyone. You are not buying blood, and the donors do not have to match your group.
That last point surprises almost everyone. A replacement donor is restoring the bank's overall supply, so any healthy eligible person can donate regardless of their group. Confirm it with your own blood bank, but it opens the pool enormously.
Start before you need it
This is the single most useful thing on the page. Ask at the start of treatment whether replacement donors will be required, and build a list then. Finding donors at short notice, when someone is already unwell, is the part families find hardest.
Ask your blood bank directly: how many units, do groups need to match, and can donors give at another centre?How to organise it
Building a donor list that actually works
Get the requirements in writing
How many donors, whether the group must match, what documents they need to bring, what the timings are, and whether they can donate at a different blood bank. Rules differ between hospitals and this is worth having on paper.
Ask more people than you need
A proportion will be turned away on the day for reasons nobody could predict — low haemoglobin, blood pressure, a recent illness, a medicine. Line up several more than the number required.
Go beyond the immediate family
Colleagues, neighbours, your workplace, a temple or community association, your children's school parents, and local donor groups. People say yes far more readily than families expect, and most are never asked.
Put one person in charge of it
Not the patient, and not whoever is at the hospital that day. Somebody with a phone, a list and time to make calls. Donor arrangements collapse when four relatives each assume another is handling it.
Keep the list updated
Names, numbers, blood groups, when each last donated and whether they are willing again. Someone who donated recently cannot donate again immediately, and a written list prevents asking them at the wrong time.
Not sure whether this applies to you?
Ask an oncologistWho can donate
The usual requirements, and what stops people
Every blood bank has its own criteria. These are the common ones — confirm the details with yours.
Generally eligible
Healthy adults within the age and weight limits the blood bank sets, who have not donated too recently, and who are not currently unwell. Most people who feel well and are reasonably fit will qualify.
Tell them to bring
- Photo identity proof
- The patient's hospital details
Turned away on the day
A low haemoglobin is the commonest reason, then blood pressure outside limits, a recent fever or infection, recent surgery, or donating too recently. None of this can be predicted, which is why spare donors matter.
Tell donors to eat properly and drink well beforehand, and to avoid alcohol the night before.Usually not eligible
People with certain long-term conditions, those on particular medicines, anyone who has had certain infections, and pregnant or recently pregnant women. The blood bank assesses each person confidentially.
What donating involves
A short health check and a finger-prick test, then the donation itself, which takes a matter of minutes, followed by rest and refreshments. Most donors are in and out within an hour and back to normal the same day.
!
Never buy blood from a paid donor or an agent
Paid donation is illegal in India and dangerous. Paid donors have every incentive to conceal illness and infections, and blood obtained this way carries a genuinely higher risk of transmitting infection to someone whose immune system is already suppressed by chemotherapy. If you are being pressed for money outside official hospital channels, or cannot find donors, speak to the hospital's medical social worker or blood bank officer rather than to anyone offering to arrange it.
If you cannot find anyone
What to do when the family is small or far away
This is a real and common situation — an elderly couple whose children are abroad, a migrant worker treated far from home, a family where everyone eligible has already donated. Say so plainly to the hospital rather than struggling silently.
Ask for the medical social worker
Most large hospitals have one, and this is exactly the problem they exist to solve. They know the local donor organisations, the camps, and what flexibility the blood bank has. Families routinely never ask.
Voluntary donor organisations
There are established groups in Hyderabad and across Telangana and Andhra Pradesh that connect patients with voluntary donors, often responding within hours. Ask the blood bank which ones they work with rather than searching alone.
Ask about the alternatives
Blood banks can sometimes issue units without replacement in genuine hardship, or accept donors over a longer period. Whether that is possible depends on their stock and their rules, and the answer is only available if you ask.
Never let it delay urgent treatment
If a transfusion is clinically urgent, say clearly that you cannot arrange donors. No blood bank withholds blood from someone who genuinely needs it because of paperwork. Replacement is a restocking arrangement, not a condition of care.
Write the donor list down and keep it with the treatment file. It will be needed more than once over a course.Leave a number, we will call you
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Being straight with you
What this page cannot tell you
It cannot tell you your hospital's rules. How many donors, whether groups must match, what documents are needed, what charges apply and what happens in hardship all differ between blood banks, and sometimes between units in the same city.
It also cannot tell you whether a particular person can donate. Blood bank criteria are detailed and assessed confidentially on the day, which is precisely why having spare donors matters more than screening people yourself.
What to do next
Ask now, before a transfusion is needed, whether replacement donors will be required and how many. Build a written list with more names than you need, going beyond the immediate family. Put one person in charge of it. And if you cannot find donors, ask for the medical social worker rather than paying anyone.
Questions we are asked
Common questions about arranging donors
Do the donors have to be the same blood group?
Usually not for replacement donation, because the donor is restocking the bank rather than giving directly to the patient. Any healthy eligible person can generally help. Confirm with your own blood bank, because it widens the pool enormously and most families assume the opposite.
Is the blood my relative donates given to me?
Generally no. Donated units go into the bank's stock and you receive cross-matched units from that stock. This is safer, because it allows proper testing and matching rather than rushing a directed donation, and it is why groups need not match.
Why do we have to pay if blood is donated free?
The blood itself is not sold. Charges cover testing for infections, blood grouping, cross-matching, processing and storage. Ask what your scheme or insurance covers, and ask for the breakdown if the amount is not clear.
Is donating safe for the donor?
Yes, for healthy adults who meet the criteria. There is a health check and a finger-prick test first, the donation takes minutes, and donors rest with refreshments afterwards. Most are back to normal the same day. Tell them to eat and drink well beforehand.
How soon can the same person donate again?
There is a minimum gap, set by the blood bank and different for whole blood and for platelets. Ask what it is and record each donation date on your list, so you are not asking someone who is not yet eligible during an urgent moment.
Can a donor give at a different blood bank?
Sometimes, with a certificate or credit arrangement between centres, which helps enormously when relatives live elsewhere. Ask your blood bank specifically whether they accept this and what documentation the donor needs to bring back.
What if a donor is rejected on the day?
It is common, usually for a low haemoglobin or blood pressure outside limits, and it is nobody's fault. Have spares lined up. The rejection is confidential between the donor and the blood bank, and it is worth telling donors that in advance.
Someone has offered to arrange donors for a fee. Should we?
No. Paid donation is illegal in India and genuinely dangerous, because paid donors have reason to conceal infections and illness. For someone on chemotherapy that risk matters more than usual. Speak to the hospital's medical social worker or blood bank officer instead.
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Sources
- World Health Organization — Blood safety and availability
- Cancer Research UK — Blood transfusions
- Macmillan Cancer Support — Low red blood cell count
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