What type of milk is present in the breasts 7 to 10 days postpartum?

• A. Colostrum
• B. Transitional milk
• C. Hind milk
• D. Mature milk

Answer: (B)

After birth, breast milk evolves through stages. Colostrum appears in the first few days—thick, yellow, rich in antibodies but low in volume. As milk production increases, transitions to transitional milk, which occurs roughly around days 3 to 10. This stage brings a larger volume and a richer composition with higher fat and lactose, providing more calories for the growing infant. By about two weeks postpartum, mature milk fully comes in and stabilizes.

Hind milk refers to the latter, higher-fat milk that comes later within a feeding, not a separate stage of postpartum milk production. So, at 7 to 10 days postpartum, transitional milk is present.