Babies with severe reflux have gastroesophageal reflux disease (GERD). A baby with GERD may spit up too much and not get enough nourishment from food. The baby can also breathe in spit-up liquid. This can cause problems with the baby's breathing.
Discharge Instructions: When Your Baby Spits Up or Vomits
It's easy for a little bit of the baby's stomach contents to leave the stomach, travel up the esophagus (food pipe), and come out through the mouth. This is called "spitting up," and it's normal. But spitting up is not the same as vomiting, which can sometimes be a sign of a serious problem. This sheet will help you understand the difference.
GERD stands for gastroesophageal reflux disease. You may also hear it called acid indigestion or heartburn. It happens when food from the stomach flows back up (refluxes) into the esophagus (the tube that connects the mouth to the stomach). GERD is common in infants.