First Time User? Sign Up Now
First Time User? Enroll now.
Home > Health Library > Asthma Triggers
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, causing inflammation of 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:
Health Tools help you make wise health decisions or take action to improve your health.
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.
Current as ofSeptember 5, 2018
Author: Healthwise StaffMedical Review: John Pope, MD, MPH - PediatricsE. Gregory Thompson, MD - Internal MedicineAdam Husney, MD - Family MedicineMary F. McNaughton-Collins, MD, MPH - Internal Medicine
Current as of:
September 5, 2018
Medical Review:John Pope, MD, MPH - Pediatrics & E. Gregory Thompson, MD - Internal Medicine & Adam Husney, MD - Family Medicine & Mary F. McNaughton-Collins, MD, MPH - Internal Medicine
To learn more about Healthwise, visit Healthwise.org.
© 1995-2018 Healthwise, Incorporated. Healthwise, Healthwise for every health decision, and the Healthwise logo are trademarks of Healthwise, Incorporated.
115 Kildaire Park Drive
Cary, NC 27518
781 Avent Ferry Road
REX Healthcare of Holly Springs, Suite 200
Holly Springs, NC 27540
4414 Lake Boone Trail
Raleigh, NC 27607
11081 Forest Pines Drive
Raleigh, NC 27614
UNC REX Healthcare 4420 Lake Boone Trail Raleigh, NC 27607, USA 919-784-3100
Chosen for Excellence
Co-Worker & Physician Login
UNC Health Talk
Copyright 2019 UNC Health Care. All rights reserved.