A 2-month-old infant with vomiting for 3 days requires prompt pediatric assessment. Persistent vomiting at this age should not be assumed to be GERD. The infant should be assessed for hydration, feeding, weight gain and red-flag features, including projectile or bilious vomiting. Hypertrophic pyloric stenosis should be considered, particularly with progressively forceful non-bilious vomiting.
Next Steps
Arrange same-day pediatric review. Continue breast/formula feeding in appropriate small, frequent feeds if the baby is able to keep feeds down. Assess urine output and hydration. If vomiting is projectile, green/bilious, bloody, associated with abdominal distension, lethargy, poor feeding, fever, or reduced wet diapers, seek urgent hospital assessment. Ultrasound may be required if pyloric stenosis is suspected.