This is a good and important question. You are correct, it is not usual for children of this age to snore. When they do it means that they have a very blocked nose and this can lead to a worrying situation where children may actually stop breathing for a few seconds at a time.This is called 'sleep apnoea'. The usual cause at this age is due to enlarged adenoids. It is important to take your son to be seen by an ENT specialist.
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