Reflux in babies, also known as gastroesophageal reflux (GER), occurs when stomach contents move back up from a babys stomach into the esophagus. It is very common and usually gets better on its own. Reflux happens in healthy infants many times a day and is not a cause for concern as long as the baby is healthy, content, and growing well. However, sometimes infant reflux can be caused by more serious conditions such as gastroesophageal reflux disease (GERD) . Symptoms of reflux in babies include spitting up liquid or food, coughing or hiccupping when feeding, being unsettled during feeding, crying and not settling, and not gaining weight as theyre not keeping enough food down. Sometimes babies may have signs of reflux but will not bring up milk or be sick, which is known as silent reflux. Reflux usually starts before a baby is 8 weeks old and gets better by the time theyre 1. Reflux is very common in babies, and about half of all babies spit up many times a day in the first 3 months of their lives. They usually stop spitting up between the ages of 12 and 14 months. If a baby has GERD, they may experience respiratory symptoms including coughing and choking, and they might even breathe in their own gastric contents. Most infants outgrow reflux by 18 months of age. Parents can try some things to ease reflux in babies, such as holding the baby upright during feeding and for as long as possible after feeding, burping the baby regularly during feeds, and giving formula-fed babies smaller feeds more often.