What Causes Vomiting in Newborns?
Feb 15, 2022
Source: Cainiu Health
Dr. Li Yanmei
Introduction
What Causes Vomiting in Newborns?
1. Vomiting begins immediately after birth. If the vomitus appears foamy or coffee-ground-like, yet the infant’s stool is normal and the abdomen is not distended, this may indicate that the infant experienced a period of asphyxia during delivery and subsequently swallowed some amniotic fluid.
2. Vomiting occurs shortly after birth or initiates with the first feeding—immediately upon starting to nurse or take milk.
Newborns may experience vomiting due to factors such as improper feeding posture adopted by parents or incorrect formula preparation ratios. If a newborn vomits repeatedly, an underlying medical condition should be considered.
What Causes Vomiting in Newborns?
1. Vomiting begins immediately after birth. If the vomitus appears frothy or coffee-ground-like, yet the infant’s stool remains normal and the abdomen is not distended, this may indicate that the infant experienced transient asphyxia during delivery and swallowed some amniotic fluid. Once the infant expels this fluid from the stomach, vomiting typically ceases.
2. Vomiting occurs shortly after birth or soon after initiating feeding. When there is no passage of meconium—or only minimal stool output—this often suggests meconium ileus (due to abnormally thick, sticky meconium) or congenital gastrointestinal malformations causing primary intestinal obstruction. Following enema-induced evacuation of thickened meconium, bowel function normalizes and vomiting resolves.
3. Most vomiting occurring one to two weeks after birth results from suboptimal breastfeeding technique. When an infant is very hungry, vigorous sucking may lead to excessive air swallowing; subsequent expulsion of this air from the stomach can trigger vomiting.
4. Improper positioning during bottle-feeding may cause milk regurgitation (“spitting up”). Although spitting up differs physiologically from true vomiting, it is clinically considered one manifestation of infant vomiting. Many newborns begin spitting up shortly after birth—a common, benign phenomenon resulting from positional changes post-delivery and gastroesophageal reflux of ingested milk into the mouth. This does not impair growth or development and typically resolves spontaneously by six months of age.
How to Prevent Vomiting in Newborns
1. For bottle-fed infants, ensure the nipple aperture is appropriately sized—not too large—to prevent overly rapid milk intake; gradually increase feeding frequency as tolerated.
2. Avoid feeding when the infant is crying.
3. After feeding, hold the infant upright and gently pat their back to facilitate burping; this helps prevent milk regurgitation.
We hope the above information is helpful to you.
