http://www.utmist.com/gastroesophageal-reflux-disease/ - Gastro reflux is a term used to describe chronic heartburn with an undetermined medical cause. Gastroesophageal reflux disease is generally caused by poor diet, leading to an overproduction of stomach acids. This leads to acid reflux, whereby the acid is passed back up through the esophagus. Gastro reflux is often permanent but can be managed with medication.