From: The use of ultrasound to identify milk ejection in women – tips and pitfalls
Milk ejection | Ultrasonic change at milk ejection | Clinical signs |
---|---|---|
First half* | Milk duct diameter increases Milk flow (echogenic flecks) towards the nipple | Sensation of milk ejection felt Pumping – visualisation of jets of milk, rapid increase in milk flow Breastfeeding – change in sucking to slower more rhythmical pattern If flow is very fast the infant may pull off the breast |
Second half** | Milk duct diameter decreases Milk flow reverses back into the breast | Sensation of milk ejection Pumping – visualisation of milk jets, slowing of milk flow Breastfeeding – slow, more rhythmical pattern Infant may discontinue feeding during milk ejection if appetite met |