Meconium (En)

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Meconium is the very first stool of a newborn.

Origin and composition

During pregnancy the fetus swallows amniotic fluid. Cells and hairs float in the amniotic fluid and reach the intestines where they accumulate. This will become the first stool.

Colour and substance

Meconium has a dark green or black colour and is very sticky. By taking the first nutrition, the intestinal tract of the baby will be stimulated. During the first three days, meconium will come out. Eventually the colour of the stool will get lighter and wetter, until it consists entirely of digested milk.

Passage of meconium before birth

Stool usually doesn’t come out before birth. If it does, it could indicate stress, caused by dyspnea (shortness of breath) for example.

External links

Meconium, English Wikipedia

Meconium, Dutch Wikipedia


NL vlag.jpg Read this article in Dutch: meconium

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