35 What is the baby's first stool called? For the initial few days, the baby passes stool called meconium. It is a dark green, sticky substance consisting of mucus, lanugo (fine hair covering the baby's body), epithelial cells, and amniotic fluid. In most cases, it will be your baby's first bowel movement. As the baby ingests breast milk, the stool will change its color to yellow. It may take 2-3 days for it to happen. What is the normal frequency and nature of the baby's stools? The frequency of your baby passing stools may vary from once a day to two or even 8-10 times per day. Many times, as soon as the baby ingests milk, she/he will immediately pass some stool due to the exaggerated gastrocolic reflex, which usually settles down within a few days. It is essential to realize that constipation is diagnosed based on the consistency of the stool and not on the frequency. As mentioned,
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