Single-center Evaluation of Human Milk Quantity and Quality Over Five Years

Inclusion Criteria: * Lactating women who donated human milk to the hospital-based human milk bank at České Budějovice Hospital during the period 2021-2025. * Accepted as donors according to local eligibility criteria for human milk donation. * At least one recorded donation of human milk with available data on donation date and volume in the milk bank database. * Availability of basic maternal and perinatal data (e.g., age, BMI, parity, mode of delivery, timing of donation) in the hospital information sys-tem. Exclusion Criteria: * Donors with no recorded volume or date of human milk donation in the milk bank database. * Records with evident data errors or inconsistencies that cannot be reliably corrected (e.g., implausible dates or volumes).