How children’s lungs grow

This information is about the way your child’s lungs grow and develop in the womb and through childhood. 

You can read more about how we breathe and how adult lungs work here.

Last medically reviewed: September 2016. Due for review: September 2019

This information uses the best available medical evidence and was produced with the support of people living with lung conditions. Find out how we produce our information. If you’d like to see our references get in touch.