What triggers inflammation in my lungs to cause asthma symptoms?

Christopher M. Webber, MD
Allergy & Immunology
Certain triggers cause the inflammation that causes asthma symptoms. For some people, it’s a problem with the lungs. This is called intrinsic (internal) asthma. For some people, there are other external (extrinsic) triggers of asthma, including the following:
  • allergies (pollen, pets and dust mites creating allergic asthma symptoms)
  • colds, flus and viral infections (creating infectious asthma symptoms)
  • cold air
  • exercise (creating exercise-induced asthma symptoms)
  • irritants (perfumes, smells and odors creating irritant asthma symptoms)
  • smoke (cigarette or even marijuana)
For almost all people with asthma, there is a combination of many of the above triggers.

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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.