Milk-Volume Monitoring During Breastfeeding: Why Digital Innovation Needs Clinical and Biological Context

Digital and biomedical technologies are increasingly reshaping maternal, neonatal, and lactation care. This perspective critically examines the clinical meaning, potential benefits, and possible unintended consequences of continuous digital milk-volume monitoring during breastfeeding, using a recently described compact wireless system as a case example. Milk-volume estimates may support clinical decision-making in selected settings, particularly neonatal intensive care and the care of late preterm, medically fragile, or feeding-compromised infants, when interpreted within a comprehensive lactation assessment that considers growth, hydration, feeding effectiveness, and maternal factors. Such interpretation is essential because milk volume alone cannot establish breastfeeding adequacy or capture the dynamic, biologically active, and compositionally variable nature of human milk. In physiological breastfeeding, routine numerical monitoring may medicalize a relational process by shifting attention from infant feeding cues, maternal confidence, and mother-infant interaction toward numerical targets, potentially reinforcing maternal anxiety. Collaboration between engineering and health sciences is therefore essential to ensure that digital monitoring enriches, rather than replaces, professional assessment within a shared clinical, biological, relational, and ethical framework.