The baby spits up after every meal. Sometimes it's a small amount, other times it soaks right through the clothes. You've run out of burp cloths and are wondering if this can really be normal.
The answer is usually: yes. Most babies spit up, and most grow out of it without any treatment. But there are cases where spitting up is a sign of something more — gastroesophageal reflux disease (GERD). Here's the difference, and what you can do.
Spitting Up vs. Reflux — What's the Difference?
Let's clear up the terminology. Spitting up and reflux are often used interchangeably, but they mean slightly different things:
- Spitting up (GER) — stomach contents flow back up into the esophagus and out of the mouth. Completely normal in infants. Baby is in good spirits, gaining weight, and thriving
- Reflux disease (GERD) — the material flowing back causes discomfort, pain, or complications. Baby is clearly troubled
Most babies have GER — normal, harmless spitting up. Only a small number have GERD requiring follow-up.
The numbers: 40–65 percent of healthy infants spit up daily. Spitting up is at its worst around 4 months of age and gradually decreases. Most babies have stopped spitting up by 12–18 months.
Why Do Babies Spit Up?
Babies spit up more than older children and adults for several reasons:
- Immature lower esophageal sphincter — the muscle ring between the esophagus and stomach is not fully developed in infants
- Liquid diet — breast milk and formula are easier to reflux than solid food
- Lots of time lying down — gravity doesn't help keep food down
- Small stomach — a newborn's stomach is roughly the size of a cherry and fills quickly
- Frequent feeds — babies eat often, and the stomach gets little time to empty between meals
All of this is completely normal and part of infant development. As the child grows, the sphincter matures and spitting up decreases.
The "Happy Spitter"
The term "happy spitter" describes a baby who spits up a lot but is otherwise thriving.
Signs that spitting up is normal:
- Baby is gaining weight as expected
- The spitting up doesn't seem to bother the baby
- Baby is content and in good spirits between feeds
- Baby's wake periods are active and happy
- No breathing difficulties
- No problems taking feeds
Rule of thumb: If your baby spits up but is gaining weight and is content — it's a laundry problem, not a medical problem. Keep plenty of burp cloths on hand and breathe easy.
Signs of Reflux Disease (GERD)
Some babies have a more serious form of reflux that causes clear discomfort. That's when we talk about GERD — gastroesophageal reflux disease.
Signs to watch for:
- Intense crying during or after feeding — baby seems in pain
- Arching the back during or just after feeding
- Refusing to eat or pulling away from breast/bottle
- Poor weight gain — baby isn't gaining as expected
- Frequent vomiting (not just spitting up) — larger amounts with force
- Irritable and restless between feeds, difficult to console
- Sleep problems — waking frequently, especially shortly after feeding
- Hoarse voice or chronic cough
- Frequent hiccups
Contact your doctor if baby: Isn't gaining weight, repeatedly refuses feeds, has blood in vomit or stool, has projectile vomiting (forceful), or has breathing difficulties associated with spitting up.
Difference Between Reflux and Cow's Milk Protein Allergy
The symptoms of reflux and cow's milk protein allergy (CMPA) can look similar. Babies with CMPA may have:
- Distress during feeding
- Excessive spitting up
- Loose or mucousy stools
- Eczema or skin rash
If measures for reflux aren't helping, your doctor may consider whether cow's milk protein allergy could be the cause. Assessment typically happens through an elimination diet.
Measures That Help With Spitting Up and Reflux
You can do a lot yourself to reduce spitting up and make your baby more comfortable.
1. Hold Baby Upright After Feeding
Hold baby in an upright position for at least 20–30 minutes after each feed. Gravity helps keep the food down. Avoid laying baby flat right after feeding.
2. Burp During Feeding
Burp baby midway through the feed and afterward. This releases air that would otherwise push stomach contents up. Some babies need to be burped several times during a feed.
3. Smaller, More Frequent Feeds
Instead of large feeds with long gaps — try giving slightly smaller amounts, slightly more often. An overfull stomach increases the chance of spitting up.
4. Proper Breastfeeding Position
If you're breastfeeding, try positions where baby is more upright:
- Laid-back nursing (baby lies on your tummy)
- Koala hold (baby sits astride your thigh)
- Side-lying — can work for some
5. Check Bottle Feeding Equipment
If baby is bottle-fed:
- Use a slow-flow nipple so baby doesn't drink too fast
- Hold the bottle at an angle where the nipple is filled with milk (not air)
- Try paced bottle feeding — a technique where baby controls the pace
6. Avoid Tight Clothing
Tight clothes around the abdomen can press on the stomach and worsen spitting up. Choose loose pants and onesies.
7. Rest After Feeding
Avoid active play, tummy time, or car travel right after feeding. Let baby be calm in an upright position.
At night: If baby spits up a lot at night, it can help to do the last evening feed a bit earlier and keep baby upright for a while before bed. Avoid putting baby in a car seat or bouncer to sleep — this can actually worsen reflux.
What About Elevating the Crib?
Many parents have been advised to elevate the head end of the crib. Current guidance is cautious about this:
- Never put pillows or rolls in the crib — this increases the risk of SIDS
- A slight elevation of the mattress itself (by placing something under the mattress, not on top) can be tried, but its effectiveness is uncertain
- Safe sleep must always be the priority. Baby should lie on their back, on a firm surface, without loose objects
Safe sleep first: Never use pillows, wedges, or rolls in the crib to hold baby in a specific position. Read more about safe sleep for baby.
Medical Treatment
Most babies with reflux need no medication. The measures described above are sufficient for the vast majority.
If a doctor determines the baby has GERD, the following may be considered:
Thickening Agents
The doctor may recommend thickening feeds. For bottle-fed babies there are special AR (anti-regurgitation) formulas that are thicker. For breastfed babies, thickening agents can be mixed into a small amount of expressed breast milk.
Acid-Reducing Medication
In rare cases, where baby has clearly painful reflux and other measures haven't helped, a doctor may prescribe acid-reducing medication (proton pump inhibitors). These are used only under medical supervision and for as short a time as possible.
Important to know: Acid-reducing medication doesn't stop the spitting up — it reduces the acid content in the stomach material so it hurts less. The spitting up itself only decreases as baby grows and the sphincter matures.
When Does It Get Better?
Timeline for most babies:
- 0–4 months — spitting up gradually increases
- 4–5 months — peaks; most babies spit up most at this point
- 6–7 months — gradual improvement, especially when baby starts sitting and eating solids
- 12–18 months — most have stopped spitting up
In babies with GERD it may take a bit longer, but the vast majority grow out of it during the first year.
Frequently Asked Questions
Is it normal for baby to spit up through the nose?
Yes, it looks dramatic but is harmless. Stomach contents find their way out through whatever opening is available — mouth or nose. Wipe gently with a soft cloth.
Can I put baby on their tummy after feeding to prevent spitting up?
No. Babies should always be placed on their back to sleep, regardless of reflux. Tummy sleeping increases the risk of SIDS. Keep baby upright in your arms after feeding instead.
Does what I eat affect a breastfed baby's reflux?
In most cases, no. But some babies react to substances in their mother's diet, particularly cow's milk protein. If you suspect this, speak with your doctor or health visitor before changing your diet.
Should I switch to special formula?
Not on your own. Speak with your pediatrician first. AR (anti-regurgitation) formula may be appropriate, but your doctor needs to determine whether it's necessary.
Read More
Sources
- NICE guidelines — Gastro-oesophageal reflux disease in children and young people
- AAP — Management of gastroesophageal reflux in infants
- Cochrane Database — Interventions for infant gastro-oesophageal reflux