A deferral is not a rejection, it almost always means “not today”. The centre’s doctor defers you when donating wouldn’t be safe for you or for the patient. Common temporary deferrals and typical return times: | Reason | Usual wait | ||| | Low haemoglobin | 2,4 weeks of iron-rich food, re-test | | Fever / infection | ~2 weeks after recovery | | Antibiotics | 5,14 days after course ends | | New tattoo / piercing | 6 months | | Alcohol | 24 hours | | Vaccination (most) | 24,48 hours; some 2,4 weeks | | Pregnancy / breastfeeding | Typically 1 year after delivery, post-lactation | | Malaria | 3 months after treatment | If you’re deferred, ask the doctor one question: “When can I come back?” Then register on our list with a reminder, or tap reconfirm after you’re eligible again.
Eligibility
Deferred from donating? Here's what it means
Most deferrals are temporary. What to do after common deferrals and when you can return.
People also ask
How long after a tattoo can I donate blood?
Six months, once fully healed. The wait covers the window for blood-borne infections that piercing the skin can carry.
Can I donate blood while taking antibiotics?
Not during an active infection. Usually 5,14 days after the antibiotic course ends, once you are fully well, the centre confirms.
How long after fever can I donate blood?
About 2 weeks after full recovery, with no lingering symptoms.
About this article
Written by Assam Blood Donor team. Medical review: pending, content follows published national (NBTC/NACO) guidance and is for general education, not personal medical advice. Last updated 26 Aug 2026.
Sources: National Blood Transfusion Council (NBTC) guidance · NACO Voluntary Blood Donation Programme · Assam SBTC donor criteria
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Reading is step one. Registering is step two.
Two minutes, phone OTP, your own 6-digit sign-in code. We contact you only when a patient near you needs your group.
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