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What causes asthma?

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No one really knows what causes asthma. It can vary from person to person. We do know that allergies play a role for many people, but not everyone. It also tends to run in families. Common triggers include:

  • Allergies
  • Exercise
  • Heartburn
  • Smoking
  • Sinusitis
  • Upper respiratory infections
  • Medications
  • Irritants, including smoke from wood fires, strong odors, cleaning supplies, air pollution, and dust
  • Weather
  • Strong emotions

SOURCES:  National Heart Lung and Blood Institute: "Causes of Asthma."  American Academy of Allergy Asthma & Immunology: "Causes of Asthma."  Murray, J. and Nadel, J. Third edition, W.B. Saunders Company, 2000.  .



Textbook of Respiratory Medicine,UpToDate

Reviewed by Hansa D. Bhargava on October 02, 2018

SOURCES:  National Heart Lung and Blood Institute: "Causes of Asthma."  American Academy of Allergy Asthma & Immunology: "Causes of Asthma."  Murray, J. and Nadel, J. Third edition, W.B. Saunders Company, 2000.  .



Textbook of Respiratory Medicine,UpToDate

Reviewed by Hansa D. Bhargava on October 02, 2018

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Can allergies trigger asthma?

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