Trusted Information for a healthier you
Asthma triggers are things in the air or in your environment that can cause your asthma symptoms to get worse. When you understand and avoid your triggers, you can better control your asthma and breathe easier.
Asthma triggers are substances or conditions that irritate your airways or cause inflammation. When you come in contact with a trigger, your airways can become narrow and inflamed, leading to asthma symptoms or an asthma attack.
Triggers can vary from person to person. Here are some of the most common triggers:
Pollen, dust mites, mold, pet dander, and cockroaches.
Colds, flu, and other viral infections can trigger symptoms.
Smoke, air pollution, strong odors, chemical fumes, and dust.
Exercise, cold air, weather changes, and poor air quality.
Stress, strong emotions, and anxiety can trigger symptoms.
Certain medicines, foods, additives, and hormonal changes.
When you are exposed to a trigger, your airways can become inflamed and narrow. Extra mucus may be produced, making it harder for air to flow in and out of your lungs.
Knowing your triggers is an important step in managing asthma and improving your quality of life.
Learn how triggers affect your asthmaEveryone's asthma is different. What triggers symptoms in one person may not affect another. Work with your doctor to identify your specific triggers.