Which of the following is NOT a sign of the letdown reflex?

The letdown reflex, also known as the milk ejection reflex, is a physiological response that occurs during breastfeeding, allowing milk to be released from the alveoli to the nipple for the infant to consume.

One of the notable signs of the letdown reflex includes the sensation of tingling in the breast, which often occurs as a result of the release of oxytocin and indicates that milk is being squirted out. Rapid swallowing by the infant is another clear sign that milk flow has increased due to effective letdown; the baby’s ability to swallow quickly suggests that they are receiving milk rapidly. Milk dripping from the baby’s mouth can also indicate that the letdown has occurred, as it signifies that there is enough milk being released for the baby to latch on and consume.

In contrast, an increase in breast size is not typically associated with the letdown reflex itself. An increase in size is more often a result of factors such as the production of milk, changes in fluid content, or engorgement rather than the immediate reflex of milk ejection. Hence, while the letdown can certainly lead to a feeling of fullness, the increase in breast size is not a direct sign of the reflex in action, as it does not reflect the