How long can maternal hormone exposure affect vaginal discharge or bleeding in newborns?

Maternal hormone exposure can significantly influence newborns, particularly in the early days following delivery. In this context, it is recognized that exposure to maternal hormones during pregnancy can lead to transient conditions, such as vaginal discharge or slight bleeding in newborns. This phenomenon is primarily attributed to the effects of estrogen and other hormones that the infant may experience while in utero.

The relevant timeframe for the impact of maternal hormones on vaginal discharge or bleeding is typically up to 10 days after birth. This aligns with the observation that hormonal changes are most pronounced in the initial days, which is why selecting a duration of up to 10 days as the correct answer is appropriate. After this period, the influence of maternal hormones on the newborn begins to diminish significantly, often resolving these symptoms completely. Pediatric care often sees such discharges resolve as the infant's hormonal environment stabilizes.