『Rethinking the Lactating Breast with Dr. Donna Geddes』のカバーアート

Rethinking the Lactating Breast with Dr. Donna Geddes

Rethinking the Lactating Breast with Dr. Donna Geddes

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What if some of what we still teach about breast anatomy, milk supply, pumping, and milk ejection is based on an outdated understanding of how the lactating breast actually works?In this episode of Behind the Latch, Margaret sits down with internationally recognized human lactation researcher Dr. Donna Geddes to explore what more than two decades of imaging the living, lactating breast has taught us.Dr. Geddes’s groundbreaking ultrasound research challenged anatomical models that had remained largely unchanged for more than 160 years. Her work has helped demonstrate that the lactating breast is far more variable—and far more complex—than the simplified diagrams many clinicians were originally taught.Together, Margaret and Dr. Geddes discuss how these discoveries translate into real clinical practice.Margaret and Dr. Geddes discuss:How Dr. Geddes went from radiography and ultrasound to human lactation researchThe history behind the traditional anatomical models of the lactating breastWhat ultrasound revealed that older breast anatomy diagrams got wrongWhy the concept of large “lactiferous sinuses” does not match what we see in the living breastHow widely milk duct anatomy can vary between individualsWhy some people can hand express milk easily while others struggleWhether having fewer lobes necessarily means a person will have low milk productionWhat we currently understand—and still don't understand—about mammary hypoplasiaWhy breast size alone tells us very little about milk-making capacityBreast changes during pregnancy and what clinicians should be asking about prenatallyThe relationship between blood flow to the breast and milk productionPregnancy complications such as gestational diabetes, preeclampsia, and fetal growth restriction as potential clues to later lactation challengesMetabolic health, inflammation, and their possible relationship to milk productionWhy identifying risk does not mean predicting failureThe importance of anticipatory guidance for families at increased risk for low milk productionWhy intensive feeding plans such as triple feeding should have clear goals and endpointsWhat ultrasound has taught us about the milk ejection reflexWhy many people do not actually feel their milk ejectionsWhy watching milk flow—or watching the baby—may tell us more than asking whether a parent “felt a letdown”Why some babies choke, sputter, or struggle with fast milk flowThe difference between anatomy-driven fast flow and true oversupplyWhy automatically trying to decrease milk production can sometimes create a new problemHow milk storage capacity differs dramatically from one person to anotherWhy frequent feeding does not automatically indicate low milk supplyWhy infant growth, behavior, milk transfer, maternal experience, and the whole clinical picture matter more than feeding frequency aloneWhy the right and left breast should not necessarily be expected to function identicallyHow researchers estimate the percentage of available milk removed from the breastWhy simply comparing pumping volumes between people can be misleadingA Bigger Lesson for Lactation ProfessionalsThroughout the conversation, one theme keeps returning:Human lactation does not fit neatly into a checklist.Breasts vary between people. The two breasts of the same person can behave differently. Milk production is influenced by anatomy, development, metabolic health, blood flow, hormones, inflammation, infant behavior, milk removal, and many other interacting factors.Understanding the science should help us individualize care—not create another rigid set of rules.What’s Coming Next?Dr. Geddes also shares some of the research underway within her team, including work examining:Flange and breast shield sizingInfant body compositionBiomarkers associated with low milk productionProteomics and metabolomicsClinical measures that could help identify low milk production earlierAntenatal and early postpartum screening toolsGestational diabetes and lactation outcomesBundled-care interventionsUltrasound phenotypingAI-supported prediction tools that may eventually help clinicians identify patterns and risk factorsThe goal is not simply to understand lactation better—it is to translate that science into tools clinicians can actually use.About Dr. Donna GeddesDr. Donna Geddes is a leading researcher in human lactation based at The University of Western Australia in Perth, Western Australia. Her research has used technologies including ultrasound, Doppler imaging, human milk analysis, and other advanced laboratory techniques to investigate breast anatomy, milk production, milk ejection, infant feeding, and lactation physiology.Her work has played a major role in reshaping our understanding of the anatomy and function of the lactating breast.Learn MoreDonna Geddes — University of Western Australia profile: UWA Research Profile This is a great primary link because it includes her biography, research projects, ...
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