Quick answer: Spitting up after feeds is so common in young babies that it’s considered normal — the question is when it becomes a medical problem worth treating.
Spitting up after feeds is so common in young babies that it’s considered normal — the question is when it becomes a medical problem worth treating. Understanding the difference between normal reflux and GERD helps you avoid both under-treatment and over-treatment.
What’s the Difference: Reflux vs GERD
Gastro-oesophageal reflux (GOR): The passive movement of stomach contents back up the oesophagus, sometimes reaching the mouth. Normal in infants — occurs in approximately 50% of babies under 3 months and in the majority to some degree. Caused by the immature lower oesophageal sphincter and liquid diet. Most spitting up is this. Also called ‘happy spitter’ when baby is gaining weight well and not distressed. Gastro-oesophageal reflux disease (GORD/GERD): When reflux causes complications — oesophagitis (inflammation of the oesophagus from acid exposure), significant pain, feeding refusal, poor weight gain, or respiratory symptoms. This is a medical condition requiring treatment. The distinction between the two is not the volume of spit-up but the impact on the baby.
Signs That Suggest GERD
- Significant arching of the back during or after feeds (Sandifer’s syndrome)
- Persistent crying or screaming during feeds
- Refusing the bottle or breast, or stopping mid-feed
- Poor weight gain or weight loss
- Choking, gagging, or coughing during feeds
- Blood in vomit or stool (indicates oesophagitis or more serious pathology — urgent evaluation)
- Recurrent respiratory symptoms: wheezing, recurrent chest infections, persistent cough (aspiration reflux)
Management: Starting Simple
Positioning: Hold upright for 20–30 minutes after feeds. Elevate the head of the cot slightly (though evidence is limited and never use a wedge under a mattress for unsupervised sleep). Feeding adjustments: Smaller, more frequent feeds reduce gastric distension. For breastfed babies, ensure good latch (excessive air swallowing worsens reflux). For formula-fed babies, anti-reflux thickened formulas (Aptamil AR, Enfamil AR) can reduce visible regurgitation. Burp thoroughly during and after feeds. Avoid overfeeding: Overfeeding is a common, underrecognised cause of symptomatic reflux — ensure feeds are appropriate for weight. Rule out CMPA: Cow’s milk protein allergy can cause GERD-like symptoms. A 2–4 week trial of hypoallergenic formula (or dairy elimination if breastfeeding) is worthwhile if symptoms are significant.
Medication: When Is It Appropriate?
Medications are appropriate when positioning and feeding changes haven’t helped and baby is clearly distressed. Antacids (Gaviscon): Infant Gaviscon is widely prescribed as a first step — it thickens stomach contents to reduce regurgitation. Evidence for benefit is modest. Can cause constipation. PPIs (omeprazole, lansoprazole): Reduce stomach acid production. Appropriate for confirmed acid-related oesophagitis. Evidence in infants is mixed — PPIs don’t reduce regurgitation volume, only acidity. They’re often overprescribed for normal spitting up. Important: Multiple randomised trials have found PPIs no more effective than placebo for infant crying related to ‘reflux’ without confirmed GERD. Discuss with your paediatrician whether medication is actually indicated.
Frequently Asked Questions
My baby spits up after every feed — do they have GERD?
Not necessarily — frequent spitting up is normal in the first 4–6 months. The questions that indicate GERD are: is baby gaining weight normally? Is baby distressed during or after feeds? Is the vomiting forceful (projectile)? If weight gain is normal and baby seems otherwise content, this is likely normal reflux that will resolve with age.
When does reflux get better?
Normal reflux improves significantly when babies begin sitting upright independently (6–7 months) and eating solids — vertical position and solid food both reduce regurgitation. The lower oesophageal sphincter also matures through the first year. Most babies are significantly better by 12 months.
Could my breastmilk be causing reflux?
Breast milk itself is the most easily digested, least reactive food available for infants and doesn’t cause reflux. However, dietary proteins from the mother’s diet (particularly cow’s milk protein) can pass into breast milk in small amounts and cause GI symptoms in sensitised babies. If CMPA is suspected, a 2–4 week strict dairy elimination trial while breastfeeding can be diagnostic.
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Related Reading
- Formula feeding guide: types, amounts and prep safety
- Is it normal for babies to have hiccups so much?
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