It is normal for children to sometimes make noises with breathing during sleep. It's not normal for children to snore unless they are unwell with a cold.
Noisy breathing can come from the nose or from an open mouth. It can be worse when your child is sleeping on their back. If you notice snoring or noisy breathing often during your child's sleep, talk to your family doctor. It might be a sign of a condition called obstructive sleep apnoea (OSA).
When someone falls asleep, the muscles of the throat relax and the breathing passages at the back of the nose and in the throat become narrower. In children, the tonsils and adenoids can grow to be quite large, and less air gets through the breathing passages during sleep. When this happens, you may notice snoring or noisy breathing.
There are some times during sleep when the muscles are more relaxed. Snoring is more common during these phases of sleep. This is why snoring can be more common in the second half of the night.
Snoring is not always a very serious problem for children - about 15 to 20 in 100 children snore. But, it is a symptom that needs checking by your family doctor as 2 to 5 in 100 children have OSA.
In children, the most common reason for OSA is enlarged tonsils and adenoids. In older children and teens, being overweight is a common reason. Any medical condition that affects the size and shape of your child's breathing passages can also make OSA more likely.
The photo below shows enlarged tonsils in a child who has OSA.
In OSA, the narrowing of the breathing passages at the back of the nose and in the throat during sleep is enough to cause breathing difficulty or pauses in breathing. A child wakes up briefly because they cannot breathe properly, often with a loud gasp or snort. These episodes can happen many times through the night and the disturbed sleep can result in changes in behaviour during the day such as:
Severe OSA can cause high blood pressure and put strain on the heart. This is not as common in children as in adults but it is something your doctor will look for.
Signs of possible OSA in a child who snores include:
Watch a video of a child with severe OSA. You can see his chest sucking in with each breath. The noises you can hear are because his breathing passages are partly blocked.
If you are worried that your child may have OSA, take them to your family doctor. Your doctor will examine your child and may recommend your child sees either:
The doctor will want to know all about your child's sleep patterns. They will examine your child's breathing passages by looking into their mouth and nose. It can be very helpful for you take a video (on your phone) of your child sleeping. Try to film the breathing pattern you are most concerned about so that you can show this to your doctor.
Your child may not need any further investigations if it's clear your child has OSA.
For some children, the doctor may recommend your child has an overnight oximetry test or a sleep test (polysomnography).
Read more about polysomnography [2]
The treatment for OSA depends on its cause. The most common treatment is removing the tonsils or adenoids (or both tonsils and adenoids) to open up the breathing passages.
Children who have this surgery need to go back to the doctor 6 to 8 weeks after their surgery. The doctor will check that their symptoms are better.
Read more about tonsillectomy and adenotonsillectomy [3]
Removing tonsils or adenoids (or both) can fix OSA. Some children keep having symptoms after surgery. This is more common in overweight children.
If surgery is not recommended for your child, or if your child keeps having symptoms after removal of their tonsils or adenoids (or both), they may need further tests. They might need an overnight oximetry test or a sleep test (polysomnography). See the links to information about oximetry and sleep tests (polysomnography) in the section above.
Some children will need further treatment such as:
Read more about CPAP (continuous positive airway pressure) [4]
Thank you to Dr Murali Mahadevan for providing the photo of enlarged tonsils from his personal collection.
This page last reviewed 28 July 2022.
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Links
[1] https://kidshealth.org.nz/overnight-oximetry
[2] https://kidshealth.org.nz/polysomnography-sleep-test
[3] https://kidshealth.org.nz/tonsillectomy-adenotonsillectomy
[4] https://kidshealth.org.nz/continuous-positive-airway-pressure-cpap
[5] https://kidshealth.org.nz/tags/sleep
[6] https://kidshealth.org.nz/node/1548?language=rar
[7] https://kidshealth.org.nz/node/2237?language=rar
[8] https://docs.wixstatic.com/ugd/f244d7_2da64d007fde469eaada46c16d551fa4.pdf
[9] https://kidshealth.org.nz/contact?from=http%3A%2F%2Fkidshealth.org.nz%2Fprint%2F54%3Flanguage%3Drar