Final answer:
Breast engorgement typically happens within the first week after delivery due to increased blood flow and milk production. If breastfeeding is stopped suddenly, engorgement and leakage can occur as milk accumulates, resembling the early postpartum period. The composition of breast milk changes from colostrum to mature milk in the days following birth and from foremilk to hindmilk during a feeding session.
Step-by-step explanation:
Breast engorgement typically occurs within the first week after delivery as the body transitions from producing colostrum to mature breast milk. This engorgement is a result of increased blood flow and milk production. A woman who stopped breastfeeding suddenly can experience breast engorgement and leakage due to the abrupt change in the regular breast drainage, causing milk to accumulate. This situation is similar to what happens in the initial postpartum period when milk production kicks in.
During the first few days of lactation, the composition of breast milk changes significantly. Initially, the mother produces colostrum, which is a thick, antibody-rich substance. As lactation continues, the breast milk transitions to a more watery, higher-volume form called transitional milk and then to mature milk. During a single feeding, the composition of breast milk also varies. The milk at the beginning of a feed is called foremilk, which is watery and quenches the baby's thirst. As the feeding continues, the fat content in the milk increases, and the hindmilk, which is richer and creamier, is delivered to satisfy the baby's hunger and support growth.