What is meconium?

Meconium is indeed the dark green substance that is the first feces of a newborn. It is composed of materials that the fetus ingests while in utero, including bile, amniotic fluid, and shed skin cells. This thick, sticky substance is typically passed within the first 24 hours after birth and is an important indicator of a newborn's gastrointestinal health. The presence of meconium can also serve as a signal of various conditions, including whether an infant has experienced any stress during labor or birth. Understanding the nature of meconium is crucial for healthcare providers, as its characteristics can provide valuable diagnostic information about the newborn's condition.