what does a gastrologist do
Pediatric gastroenterologists generally provide treatment for the following: 1  Bleeding from the gastrointestinal tract. 2  Lactose intolerance. 3  Food allergies or intolerances. 4  Severe or complicated gastroesophageal reflux disease (reflux or GERD). 5  Inflammatory bowel disease. 6  Short bowel syndrome.ediatric gastroenterologists are specially trained to perform diagnostic tests of a childâs digestive system. Special instruments, such as endoscopes, are used to examine the inside of the digestive tract or obtain tissue samples (biopsies).