Causes of asthma in children
We don’t know exactly what causes asthma.
We don’t know exactly what causes asthma, but research has found that your child is more likely to develop asthma if:
- you have a family history of asthma
- they have eczema or any allergies, or you have a family history of eczema and allergies
- they are exposed to cigarette smoke, especially if you smoke when you are pregnant