Many infants will spit up a little after some — or even all — feedings or during burping because their digestive tracts are immature. That's perfectly normal. As long as your baby is growing and gaining weight and doesn't seem uncomfortable with the spitting up, it's OK.

Is it normal for breastfed babies to spew?

It's normal for babies to spit up both breast milk and formula. Infants spit up after feedings (sometimes every feeding) and often bring up some milk when they burp.

What causes a baby to vomit after breastfeeding?

Vomiting. Spitting up and dribbling milk with burps or after feedings is fairly common in newborns. This is because the sphincter muscle between the stomach and the esophagus (the tube from the mouth to stomach) is not as strong as it will eventually become as the baby matures.