International Board of Certified Lactation Consultant (IBCLC) Practice Exam

Which pressure is created by suction during breastfeeding?

1. Positive

2. Negative

3. Neutral

4. Variable

The correct answer is: Negative

During breastfeeding, the pressure created by suction is classified as negative pressure. When the infant latches onto the breast and begins to suck, they create a vacuum effect within their mouth. This action draws the nipple and areola into the mouth, which helps stimulate milk flow from the mother's milk-producing glands. Negative pressure is essential for effective breastfeeding, as it not only facilitates the milk-ejection reflex but also aids in maintaining a strong latch. The infant's rhythmic sucking creates varying degrees of suction, which enhances the efficiency of milk transfer. Understanding the dynamics of pressure during breastfeeding is crucial for addressing various feeding challenges and ensuring that both the baby and the breast are functioning optimally during the feeding process. This knowledge is vital for lactation consultants who work to support breastfeeding families.