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Asthma causes

Inflammation of the airways causes asthma, but the reasons for this lifelong respiratory condition are still not fully understood.

5.4 million people in the UK are receiving treatment for asthma.

Someone with asthma may not experience symptoms until they experience an asthma trigger, such as airborne irritants or chest infections.

Risk factors for developing asthma include:

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WebMD Medical Reference

Medically Reviewed by Dr Rob Hicks on March 06, 2015

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