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An asthma trigger is a factor that can lead to sudden difficulty breathing or other symptoms of asthma (asthma attack).
Some triggers are substances a person may be allergic to (allergens). Allergens cause the body's natural defenses (immune system) to produce chemicals called immunoglobulin E (IgE) antibodies. These chemicals bind to allergens, causinginflammationof the bronchial tubes, which carry air to the lungs. The allergen may also cause asthma attacks. These triggers include:
Other triggers can cause asthma symptoms without affecting the body's immune system. These include:
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Other Works Consulted
Guarnieri M, Balmes JR (2014). Outdoor air pollution and asthma. Lancet, 383(9928): 1581-1592. DOI 10.1016/S0140-6736(14)60617-6. Accessed May 6, 2014.
ByHealthwise StaffPrimary Medical ReviewerJohn Pope, MD, MPH - PediatricsE. Gregory Thompson, MD - Internal MedicineAdam Husney, MD - Family MedicineSpecialist Medical ReviewerMary F. McNaughton-Collins, MD, MPH - Internal Medicine
Current as ofDecember 6, 2017
Current as of:
December 6, 2017
John Pope, MD, MPH - Pediatrics & E. Gregory Thompson, MD - Internal Medicine & Adam Husney, MD - Family Medicine & Mary F. McNaughton-Collins, MD, MPH - Internal Medicine
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