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What is Laryngomalacia? What Every Parent Needs to Know

By Rachel Moore | No Village Mom

I had never heard the word laryngomalacia until my son was three and a half months old.

By that point I had already spent those months describing his symptoms to anyone who would listen — the noisy breathing that sounded like a tiny squeaky toy, the feeding struggles that left him exhausted and me terrified, the reflux that no amount of positioning or medication seemed to fully control. I had been told, repeatedly, that it was probably just a noisy baby. That some babies are just grunty. That the reflux would get better.

It wasn’t just a noisy baby. And knowing what was actually happening would have helped enormously.

If you’ve landed on this post because your baby makes strange sounds when they breathe, struggles to feed, seems to choke or gag frequently, or has reflux that isn’t responding the way it should — please read this. I’m not a doctor. But I am a mom who wishes someone had explained this to her sooner.

What is laryngomalacia?

Laryngomalacia is the most common cause of noisy breathing in infants. The word comes from the Latin for “soft larynx” — which is exactly what it is. The tissue above the voice box (the larynx) is floppy and partially collapses inward when a baby breathes in. This creates the characteristic noise — a high-pitched, squeaky or crowing sound called **stridor**.

It’s a structural issue, not an infection, not an allergy. Babies are simply born with tissue that is more floppy than it should be. In most cases it resolves on its own as the tissue stiffens and the baby grows stronger — typically by 18 to 24 months.

Laryngomalacia affects roughly 1 in 2,000 to 1 in 5,000 births, though many doctors believe it is underdiagnosed because mild cases are often dismissed as “normal baby sounds.”

In our son’s case, his sounds were just “newborn congestion. “

What does laryngomalacia sound like?

The classic sound is **stridor** — a high-pitched, crowing or squeaky noise that happens when the baby breathes **in** (not out). It’s often louder when the baby is:

– Feeding
– Crying
– On their back
– Active or excited

It tends to be quieter when the baby is calm, upright, or sleeping on their stomach (though back sleeping is the safe sleep recommendation — more on navigating that below).

When I describe the sound to people I say it was like my son was breathing through a tiny straw, or like a small squeaky toy every time he inhaled. Once you hear it you know something is different.

What causes laryngomalacia?

The exact cause isn’t fully understood. Some theories:

– Neurological immaturity — the nerves controlling the larynx aren’t fully developed at birth
– Anatomical differences in the structure of the larynx
– Possible genetic component — it does seem to run in some families

It is not caused by anything you did during pregnancy. It is not preventable. It is simply how some babies are born.

The connection to reflux

This was the piece that nobody explained to me clearly, and it made everything so much harder to understand.

Babies with laryngomalacia have significantly higher rates of gastroesophageal reflux (GERD) than babies without it. The reason is mechanical: when a baby with laryngomalacia breathes, they are working harder than a typical baby to pull air past the floppy tissue. This increased breathing effort creates negative pressure in the chest and abdomen — and that negative pressure pulls stomach contents upward.

So the reflux isn’t a separate problem. It’s a direct consequence of the laryngomalacia.

This means that treating only the reflux without addressing the laryngomalacia often doesn’t work well — which is exactly what happened with us for months. We tried positioning, we tried medication, we got marginal improvement. Because the root cause was still there.

The connection to feeding difficulties

For the same reason, feeding is often genuinely hard for babies with laryngomalacia.

Coordinating the suck-swallow-breathe sequence is something most babies do automatically. For a baby with laryngomalacia, the breathing part of that equation is already compromised. They may:

– Tire quickly during feeds
– Pull off the breast or bottle frequently
– Choke or gag during feeds
– Take in a lot of air while feeding (leading to significant gas and burping)
– Refuse to finish bottles
– Have slow weight gain

This is why we ended up doing weekly weight checks. My son was working so hard to breathe that feeding exhausted him, and he wasn’t taking in enough. Moving to bottle feeding — where I could measure exactly how much he was getting — was the right call for us, even though it wasn’t the plan.

How is laryngomalacia diagnosed?

Laryngomalacia is diagnosed by an ENT (ear, nose, and throat specialist) through a procedure called **laryngoscopy** — a small flexible camera that goes through the nose and allows the doctor to see the larynx directly.

It cannot be diagnosed from a description alone, from a video, or by your pediatrician simply listening. It requires a specialist and a scope.

If you suspect laryngomalacia, ask your pediatrician for an ENT referral. If your pediatrician dismisses your concerns, ask again. Document the noisy breathing on video — most phones can capture it clearly — and bring it to the appointment.

I wish I had been more aggressive about pushing for this referral sooner. The diagnosis came at 3.5 months. Looking back, the symptoms were there from the beginning.

How severe can it be?

Laryngomalacia exists on a spectrum:

**Mild** — noisy breathing, minimal feeding issues, good weight gain. Most cases fall here. Management is monitoring and reassurance.

**Moderate** — noisy breathing with some feeding difficulties and possible mild failure to thrive. May require more active management including treating reflux aggressively and working with a feeding therapist.

**Severe** — significant breathing difficulty, poor weight gain, oxygen desaturation during feeds, bluish coloring around the mouth during feeds. A small percentage of cases — roughly 10-15% — fall here and may require surgical intervention.

The surgery for severe laryngomalacia is called **supraglottoplasty** — a minimally invasive procedure that trims the excess floppy tissue. Recovery is relatively quick and outcomes are generally excellent.

My son’s case was severe. They kept saying he would most likely need surgery if we couldn’t get his weight gain up.

How is laryngomalacia managed?

For most babies the management is:

**Positioning** — keeping the baby upright during and after feeds, and elevated (not flat) during sleep where possible. This doesn’t mean propping up the mattress in the crib — that’s a safety hazard. It means holding the baby upright after feeds, using an inclined carrier for daytime contact naps, and understanding that flat on the back will be noisier.

**Feeding modifications** — slower flow nipples, paced bottle feeding, smaller more frequent feeds, frequent burping. [The bottle matters enormously](https://novillagemom.com/best-baby-bottles-reflux-laryngomalacia) — I wrote a whole post about every bottle we tried and the one that finally worked.

**Reflux management** — your pediatrician may prescribe a reflux medication like famotidine or omeprazole. These help with the acid component of reflux. They don’t fix the laryngomalacia, but they can make your baby more comfortable.

**Feeding therapy** — some babies with laryngomalacia benefit from working with a speech-language pathologist who specializes in infant feeding. They can assess the suck-swallow-breathe coordination and suggest specific techniques.

**Monitoring** — regular weight checks to make sure your baby is growing adequately. If they’re not, more intervention is needed.

I want to add something that gave me real hope during the hardest months. At diagnosis, surgery felt like it might be inevitable. His case was significant enough that it was on the table. But we really focused on tummy time and building his airway strength, and by five months he had vastly improved. He was feeding better, breathing more quietly, and gaining weight consistently. Surgery was ultimately never recommended. I share this not to minimize how serious laryngomalacia can be — every case is different — but because nobody told me that focused work and time could make that kind of difference. It can. It did for us.

What I want other parents to know

**Your instinct is data.** If your baby sounds different from what you think a baby should sound like, and people keep telling you it’s normal, keep pushing. You know your baby.

**Get the video.** Record the noisy breathing. Record the feeding struggles. Medical appointments are short and babies often perform differently in a clinical setting. Having video evidence changes conversations.

**Ask for the ENT referral by name.** Don’t just say “something seems wrong.” Say “I would like a referral to an ENT for a laryngoscopy to rule out laryngomalacia.” Specific requests get specific results.

**The reflux and the laryngomalacia are connected.** If your baby has both, make sure the doctors treating them are communicating. The laryngomalacia is usually the primary issue.

**It almost always gets better.** The vast majority of laryngomalacia cases resolve without surgery by 18-24 months. My son at fourteen months is a completely different baby. The noisy breathing is almost entirely gone. He eats everything. He sleeps. It does end.

You will get through this.

*No village required.*

*If you’re navigating formula choices alongside laryngomalacia and reflux, I have a full formula comparison tool at [BabyFormulaDB](https://babyformuladb.com) — including which formulas are designed for sensitive tummies and reflux, with a free quiz to help narrow it down.*

*Rachel Moore is a first-time mom navigating parenthood without a village. No mom group, no nearby family — just a lot of Googling at 2am and figuring it out alongside her baby.*

*This post is for informational purposes only and does not constitute medical advice. Always consult your pediatrician or a qualified specialist for diagnosis and treatment.*