Life-threatening massive upper gastrointestinal bleeding in a term and healthy baby.

Upper gastrointestinal (UGI) bleeding due to gastric ulcer and gastritis can be seen in severely ill or premature infants but is rarely reported in healthy term newborns. UGI endoscopy is crucial for the etiological evaluation and appropriate treatment of UGI hemorrhages. This report discusses the differential diagnosis and treatment approach in a previously healthy infant who was admitted to the neonatal intensive care unit due to life-threatening severe UGI bleeding causing hemodynamic instability.