Babies that are born with Hirschsprung therefore fail to pass the meconium, their first stool, a process that usually happens within the first 2 days after birth.
The fetus's digestive system isn't totally empty, though: some waste does go there and get broken down by acidic bile in the small intestines, producing a slimy, sticky greenish mass called meconium.
The fetus's digestive system isn’t totally empty, though: some waste does go there and get broken down by acidic bile in the small intestines, producing a slimy, sticky greenish mass called meconium.