What does the term "meconium" refer to?

Meconium refers to the first feces of a newborn. It is a thick, sticky, greenish-black substance that is composed of materials ingested by the fetus while in the womb, including amniotic fluid, mucus, lanugo, and bile. Meconium is typically passed by the infant within the first 24 to 48 hours after birth, and its appearance is an important indicator of the newborn's health. If meconium is present in the amniotic fluid during labor, it can signal potential distress for the baby, and healthcare providers may need to monitor the infant for signs of meconium aspiration syndrome, which occurs if the baby inhales meconium into the lungs. Understanding the significance of meconium is crucial for healthcare professionals working in obstetrics and pediatrics, as it provides insights into the health status of both the newborn and the pregnancy.