Breastmilk is widely recognised as an important source of nutrition for infants, providing energy, protein, fats and other nutrients along with immune-supporting components. However, there are situations in which a mother may be unable to provide enough of her own milk for her baby. In such circumstances, donor human milk from a regulated milk bank may be an option, particularly for vulnerable newborns.
Milk banks collect donated breastmilk from screened lactating women, process it according to established safety procedures and distribute it to babies who need it. The availability and eligibility criteria for donor milk vary between countries, hospitals and milk banks.
What is donor breastmilk
Donor breastmilk is human milk voluntarily provided by a lactating woman for another infant. In regulated milk-banking systems, donors undergo health screening and the donated milk is collected, tested, processed and stored under controlled conditions.
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Donor milk is different from milk obtained informally from friends, acquaintances or online communities. Informal milk sharing can involve unknown medical histories, medication exposure, contamination or improper storage. For babies who require human milk, particularly premature or medically fragile infants, milk obtained through an established milk bank is generally the safer option.
Who may benefit from donor milk
Donor human milk is especially important for some premature or medically vulnerable babies. Infants in neonatal intensive care units (NICUs) may have additional nutritional and medical needs, and human milk can be particularly valuable when the mother's own milk is temporarily unavailable or insufficient.
Depending on local policies, donor milk may also be considered for certain babies with medical conditions or other circumstances where breastfeeding or a mother's expressed milk is not immediately available.
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A healthcare professional should determine whether donor milk is appropriate for an individual baby.
How do milk banks ensure safety
Safety is a central part of regulated milk banking.
Potential donors are generally asked about their health, medications, lifestyle and medical history. Milk banks may also conduct blood tests or other screening before accepting donations.
Once collected, donated milk is carefully handled and stored. It may be tested and undergo pasteurisation, a heat-treatment process designed to reduce the risk from harmful microorganisms while retaining many of the beneficial components of human milk.
After processing, milk is stored under controlled conditions until it is distributed according to the milk bank's protocols.
Why is donor milk often discussed for premature babies
Premature infants can be particularly vulnerable to infections and certain intestinal complications. Human milk may offer nutritional and biological benefits for these babies.
For this reason, neonatal care teams may recommend donor human milk when a mother's own milk is unavailable or insufficient, depending on the baby's condition and the hospital's protocols.
However, donor milk should not be presented as a replacement for a mother's own breastmilk when the mother is able and willing to provide it. Rather, it can serve as an important bridge or additional source of human milk when medically appropriate.
Who can donate breastmilk
Milk-bank requirements differ by organisation. Potential donors typically need to be healthy and meet specific screening criteria. A milk bank may assess factors such as the donor's medical history, medications, infectious-disease screening and milk-handling practices.
Women interested in donating should contact an accredited or recognised milk bank rather than arranging informal donation themselves. The bank can explain eligibility requirements, collection procedures and storage instructions.
Safe handling matters
Breastmilk is sensitive to contamination and temperature changes. Donors should follow the milk bank's instructions carefully regarding hand hygiene, containers, pumping equipment, labelling, freezing and transportation.
Parents receiving donor milk should also follow the healthcare provider's instructions for thawing, handling and feeding it. Milk should never be prepared or stored in ways that contradict the instructions provided by the milk bank or medical team.
Donor milk is not the only option
When a mother cannot provide sufficient milk, healthcare professionals can discuss several feeding options based on the baby's age, health and nutritional requirements. These may include expressed maternal milk, donor human milk or infant formula.
Parents should not feel guilty if breastfeeding does not happen as planned. Feeding decisions can be complex, and the priority is ensuring that the baby receives safe and adequate nutrition.
Donor breastmilk and milk banks can play an important role in supporting babies who cannot receive enough milk from their own mothers, particularly premature and medically vulnerable newborns.
The safest approach is to use donor milk supplied through a regulated milk bank or healthcare facility, where donors and milk undergo appropriate screening and processing. Informal or unverified milk sharing carries potential risks and should not be treated as equivalent to screened donor milk.
If you are considering donating breastmilk or are looking for donor milk for your baby, speak with your paediatrician, lactation professional or local milk bank. They can help you understand eligibility, availability, safety procedures and the feeding option most appropriate for your baby's needs.
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