Certified Breastfeeding Counselor (CBC) 2025 – 400 Free Practice Questions to Pass the Exam

Lactogenesis refers to the processes involved in the initiation and production of breast milk. The first stage, known as Lactogenesis I, begins during pregnancy and continues after birth. It is characterized by the preparation of the mammary glands for milk production, starting as early as the second trimester. However, Lactogenesis II, which is the onset of copious milk production, occurs immediately after birth. This stage is triggered by hormonal changes, particularly the drop in progesterone levels along with increased prolactin release following the expulsion of the placenta.

This means that the correct answer highlights the critical moment when lactation truly begins, laying the foundation for successful breastfeeding right after delivery. This early initiation is vital for establishing milk supply and ensuring the infant receives colostrum, which is rich in antibodies and essential nutrients for newborn health.