“When [gastrooesophageal reflux, GER, GOR] is high enough to be visualized it is called regurgitation.” (Benninga et al. 2016). According to Rome IV, the diagnostic criteria for infant regurgitation “include both of the following in otherwise healthy infants three weeks to 12 months of age:
1. Regurgitation two or more times per day for three or more weeks
2. No retching, hematemesis, aspiration, apnea, failure to thrive, feeding or swallowing difficulties, or abnormal posturing” (Benninga et al. 2016).