Child Sleeping With Mouth Open or Mouth Breathing: When Should You Worry?

19 Sept

You check on your child at night and notice they are sleeping with their mouth open.

Maybe they also snore. Perhaps you've noticed they breathe through their mouth during the day, always seem congested, or have had ongoing ear, hearing or sleep concerns.

So should you actually do anything about it?

Occasional mouth breathing can happen, particularly when children are congested. But if your child is regularly mouth breathing or sleeping with their mouth open, it can be worth documenting what you're seeing and discussing the pattern with their healthcare professional.

This guide doesn't diagnose the cause of mouth breathing or tell you how to treat it. Instead, it helps you work out what information to collect, who you might need to speak to and how to navigate the next steps.

My child sleeps with their mouth open - what should I notice?

Before trying to work out why it's happening, look for a pattern.

only when your child is unwell or congested
most nights
during the day as well as during sleep
alongside snoring or noisy sleep
alongside frequent waking or unsettled sleep
alongside ongoing nasal congestion
alongside recurrent ear problems
alongside concerns about hearing or speech

You don't need to decide whether these symptoms are connected. Simply being able to describe what happens, how often and what else you've noticed can make the conversation with your child's healthcare professional much more useful.

Child mouth breathing and snoring

One particularly useful thing to notice is whether your child snores as well as mouth breathes.

Instead of simply telling your GP, "My child snores," you may be able to explain: "My child sleeps with their mouth open most nights and also snores regularly. I've noticed it even when they don't have a cold."

That provides considerably more context. If you're concerned about something happening during your child's sleep, you may also find it useful to ask their healthcare professional whether a short video of what you're observing would help at an appointment.

Could enlarged adenoids or tonsils be involved?

If you search for mouth breathing in children, you'll quickly come across enlarged adenoids and tonsils.

These are among the things a healthcare professional may consider when assessing a child with persistent mouth breathing, snoring or other related symptoms.

The important point for parents is that you don't need to determine whether your child's adenoids or tonsils are enlarged yourself. Instead, document the symptoms you're seeing and take that information to the appropriate healthcare professional.

What do ear problems have to do with mouth breathing?

This is where looking at your child's health as a whole can become useful.

Perhaps your child isn't just mouth breathing. Maybe they also snore, have recurrent ear infections, seem congested, have hearing concerns or have speech concerns.

Parents can easily end up discussing each problem separately at different appointments. Instead, make sure your child's healthcare professionals know about the overall pattern you're seeing.

Depending on your child's individual circumstances, their healthcare pathway might eventually involve hearing assessment, an ENT specialist or another service.

Related guides:

My child sleeps with their mouth open but breathes through their nose

This is another question parents commonly search.

Seeing your child's mouth open doesn't necessarily tell you exactly how they are breathing. You don't need to work this out yourself.

Instead, consider the wider picture: Is it happening regularly? Do they snore? Does it happen when they aren't sick? Are there other sleep, ear, hearing or speech concerns?

Those observations are more useful to take to your child's healthcare professional than trying to diagnose the reason yourself.

Who should I see about mouth breathing in my child?

For many Australian families, the GP is a useful starting point for persistent concerns because they can consider the broader picture and determine whether further assessment or referral is appropriate.

Depending on the circumstances, families may eventually encounter services such as ENT, hearing/audiology, paediatrics or sleep services.

That doesn't mean a child who mouth breathes automatically needs any of these services. It simply explains why different families can end up following different pathways for what initially looks like the same symptom.

What should I take to the appointment?

You don't need a complicated symptom diary. Before the appointment, consider writing down:

when you first noticed it
how often it happens
whether it occurs during the day
whether your child snores
whether it happens when they're otherwise well
any ear or hearing concerns
any other changes you've noticed

This can be particularly useful when the behaviour you're concerned about happens mainly at night and isn't visible during a daytime appointment.

What if we're already waiting for an ENT appointment?

If your child has already been referred, keep track of meaningful changes while you're waiting.

If their situation changes, contact the healthcare professional managing their care rather than assuming you simply have to wait until the specialist appointment.

You can also keep your observations together so that when the ENT appointment arrives, you have a clear timeline rather than trying to remember several months of symptoms.

Should I try to stop my child mouth breathing at night?

This is a common Google search, but it's not something this article is going to provide a treatment guide for.

There can be different reasons why a child mouth breathes.

Rather than trying to diagnose or treat the cause yourself based on information online, the purpose of this guide is to help you recognise the pattern, document what you're seeing and know where to start asking questions.

Child sleeping with mouth open: the key takeaway

If you've noticed your child sleeping with their mouth open, you don't need to diagnose the reason before raising it with a healthcare professional.

Look at the bigger picture.

Is your child also mouth breathing during the day? Snoring? Frequently congested? Having recurrent ear problems? Are you concerned about their hearing, speech or sleep?

Those details can help turn "My child sleeps with their mouth open" into a more useful healthcare conversation: "I've noticed a persistent pattern involving their breathing, sleep and other symptoms, and I'd like to know whether it needs further assessment."

That's a useful place to start.

Andrea .