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, causing
inflammation of the bronchial tubes, which carry air
to the lungs. The allergen may also cause asthma attacks. These triggers
- Dust mites.
- Animal dander.
- Cockroach droppings.
Other triggers can cause asthma symptoms without affecting
the body's immune system. These include:
- Cigarette smoke and air
- Viral infections, such as colds and
influenza, and sinus and other
upper respiratory infections.
Many people with asthma have symptoms when they exercise.
- Dry, cold
- Medicines, such as aspirin or beta-blockers.
adults, hormones, including those involved in pregnancy and menstrual periods
(just before or during periods).
- Gastrointestinal reflux disease (GERD). Some experts debate whether GERD makes asthma
worse. Studies have shown conflicting results as to whether GERD triggers
- Asthma Action Plan
- Asthma in Children
- Asthma in Teens and Adults
- Asthma: Taking Charge of Your Asthma
Gibson PG, et al. (2003). Gastro-esophageal reflux treatment for asthma in adults and children. Cochrane Database of Systematic Reviews (1). Oxford: Update Software.
|By: ||Healthwise Staff ||Last Revised: March 14, 2013|
|Medical Review: ||John Pope, MD - Pediatrics|
Lora J. Stewart, MD - Allergy and Immunology
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