Vomiting on the 1st day of baby&;s life may be caused by all of the following
The most common causes of vomiting in the neonatal period include gastroenteritis, malrotation, pyloric stenosis, TEF and necrotizing enterocolitis. In infancy, common causes are GERD, gastroenteritis, bowel obstruction, milk protein allergy and UTI. Reference: GHAI Essential pediatrics, 8th edition
Pyloric stenosis
Oesophageal atresia
Aerophagy
Amniotic gastritis
New born infants