Sep 7, 2022 · Meconium is your baby's first poop. It's darker and thicker than typical poop and extremely sticky. Meconium builds up inside your baby's intestines from swallowing amniotic fluid (the fluid that …

Meconium is the earliest stool of a mammalian infant resulting from defecation. Unlike later feces, meconium is composed of materials ingested during the time the infant spends in the uterus: …

Nov 17, 2023 · “Meconium” is the medical term for the substance (stool) that is passed during a baby’s first bowel movement.

Meconium is the first feces, or stool, of the newborn. Meconium aspiration syndrome occurs when a newborn breathes a mixture of meconium and amniotic fluid into the lungs around the time of delivery.

Nov 14, 2025 · Learn why some babies poop in the womb and how it can affect labor. Discover how to manage meconium and ensure your baby's safety.

Meconium aspiration happens when a baby is stressed and gasps while still in the womb, or soon after delivery when taking those first breaths of air. When gasping, a baby may inhale amniotic fluid and …

Apr 2, 2025 · Meconium is the build-up of waste products in the intestines of the fetus. It is often described as black and tarry. It starts to accumulate in the intestines at around 34 weeks' gestation. …

Meconium is the first stool a newborn passes, and is very viscous, or thick. It forms while the fetus develops in utero and consists of intestinal epithelial cells, bile, succus entericus, mucus, lanugo, and …

Jul 19, 2025 · Meconium is a newborn’s first stool, a substance that forms in the fetal intestines during pregnancy from ingested materials like amniotic fluid, mucus, bile, and water. The passage of this …

Mar 4, 2025 · What is meconium ileus? Meconium ileus refers to a small bowel obstruction caused by an unusually thick and sticky meconium, which is the very first stool of a newborn baby.