Most babies, whether they are breastfed or formula fed, will spit up at some point. There is a big difference, however, between spitting up and vomiting. The former doesn't interfere with a baby's well-being, while the ladder can be a sign of a serious problem. It's important for you, as a parent, to understand the reasons for your baby's projectile vomiting so that you don't hesitate in seeking immediate medical treatment.
Many new parents aren't quite sure of the difference between vomiting and spitting up. Spitting up is the easy flow of a baby's stomach contents through their mouth, possibly along with a burp. As the Mayo Clinic noted, however, when the flow is forceful and shoots out inches instead of dribbling from the mouth, this is considered vomiting. Sometimes a baby can have such a forceful ejection, that the breast milk or formula is released in an arc over a distance of many feet. According to Kids Health From Nemours, projectile vomiting usually takes right after the end of a feeding, but in some cases it can happen hours later and may be a sign of illness.
Here are some of the reasons your baby may be projectile vomiting.