Symptoms of Gastroesophageal Reflux in Children and Adolescents

Almost all children and adults have a little bit of reflux, without being aware of it. When refluxed material rapidly returns to the stomach, it causes no damage to the esophagus. In some children, the stomach contents remain in the esophagus and cause damage to the esophagus lining. In other children, the stomach contents go up to the mouth (regurgitation) and are swallowed again. When the refluxed material passes into the back of the mouth or enters the airways, the child may become hoarse or have a raspy voice or a chronic cough. Other symptoms include recurrent pneumonia, wheezing, and difficult or painful swallowing.

Digestive system noting the mouth, esophagus, lower esophageal sphincter (LES), stomach, and small intestine.

source: http://digestive.niddk.nih.gov/ddiseases/pubs/gerinchildren/index.htm