Back to search results

Ask an Expert

What causes asthma?

Answered by Dr Ellie Cannon
8th September 2015
Yes No
Was this answer helpful?
  people found this answer helpful

It is not always clear what causes asthma, although it is often thought to be a combination of factors. There are a number of factors that may increase your little one’s chance of developing asthma. These include:

  • A family history of asthma or other allergies including food allergies, hay fever and eczema (known as atopy)
  • Exposure to tobacco smoke
  • Low birth weight due to restricted growth within the womb
  • Being born prematurely
  • Having bronchiolitis (a common childhood lung infection)
  • Having another atopic condition

There are a number of known ‘triggers’ for asthma that can bring on symptoms. These triggers include animals and pets, having a cold or flu, dust mites and pollen.


Related Information