What role does nipple stretching play in the breastfeeding process?

Nipple stretching plays a significant role in stimulating several important physiological processes during breastfeeding, one of which involves the release of oxytocin. When the nipple and areola are stretched, sensory receptors in the nipple send signals to the brain, leading to the release of oxytocin from the posterior pituitary gland. This hormone is essential for effective breastfeeding as it causes the contraction of myoepithelial cells in the breast, helping to eject milk from the alveoli into the ducts, facilitating the milk flow to the baby during feeding. This reflex also encourages bonding between the mother and infant, promoting overall successful breastfeeding.

Other aspects of nipple stretching, while important in their own respect—such as helping with the latch or milk supply—do not primarily focus on the hormonal response linked to oxytocin release, which is central to the breastfeeding process.