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[–] Lumidaub ago 

They don't throw up, it's actually a kind of reflux. Babies need a lot of food, but their digestigve system can't always handle it yet and some of it flows back into the mouth..

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[–] Vvswiftvv17 ago 

For babies sometimes the flap above the esophagus isn't fully developed and stomache acid comes up, known as GERD. It's like really bad heartburn for babies.