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What causes a child to have asthma?

Answered on 11th January 2016
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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.


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