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Asthma in Children - Cause
SYMPTOMS & TREATMENTS
- Overview
-
Health Tools
- FAQs
- Cause
- Symptoms
- What Happens
- What Increases Your Risk
- When to Call a Doctor
- Exams and Tests
- Treatment Overview
- Prevention
- Living With Asthma
- Medications
- Other Treatment
- Other Places To Get Help
- Related Information
- References
- Credits
The cause of
asthma is unknown. Health experts believe that
inherited, environmental, and
immune system factors combine to cause
inflammation 
of the bronchial tubes, which carry air
to the lungs. This can lead to asthma symptoms and
asthma attacks.
- Family history. Asthma may run in families (inherited). If this is the case in your family, your child may be more likely than other children to develop long-lasting (chronic) inflammation in the bronchial tubes.
- Immune system. In some children, immune system cells release chemicals that cause inflammation in response to certain substances (allergens) that cause allergic reactions. Studies show that exposure to allergens such as dust mites, cockroaches, and animal dander may influence asthma’s development.1 Asthma is much more common in children with allergies (atopic children), though not all children with allergies develop asthma. And not all children with asthma have allergies.
- Environment. Environmental factors and today's germ-conscious lifestyle may play a role in the development of asthma. Some experts believe there are more cases of asthma because of pollution and less exposure to certain types of harmful bacteria and other germs.2 As a result, children's immune systems may develop in a way that makes it more likely they will also develop allergies and asthma.
| By: | Healthwise Staff | Last Revised: March 17, 2011 |
| Medical Review: | E. Gregory Thompson, MD - Internal Medicine Lora J. Stewart | |
© 1995-2011 Healthwise, Incorporated. Healthwise, Healthwise for every health decision, and the Healthwise logo are trademarks of Healthwise, Incorporated. This information does not replace the advice of a doctor. Healthwise, Incorporated disclaims any warranty or liability for your use of this information. Your use of this information means that you agree to the Terms of Use. How this information was developed to help you make better health decisions.
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