Mississippi State Department of Health

Indoor Triggers


Things that cause asthma episodes are called triggers. Indoor asthma triggers may be found at home, at school, or at work.

Common Indoor Asthma Triggers

Tobacco Smoke

Asthma can be triggered by smoke from the burning end of a cigarette, cigar, or pipe. Asthma can also be triggered by the smoke breathed out by a smoker.

Dust Mites

Dust mites are tiny bugs you can't see. Dust mites live in bed sheets, blankets, pillows, mattresses, soft furniture, carpets, and stuffed toys.

Mold & Mildew

Mold and mildew grow on damp surfaces such as shower curtains, bath toys, tubs, basins, and tiles. Leaky plumbing and roof leaks cause dampness, which can cause mold to grow in your home.


Cockroach droppings and body parts may trigger asthma episodes.


The skin flakes and saliva of furry pets like cats and dogs can trigger asthma.

Other Indoor Asthma Triggers

Watch for these other possible triggers and items like them:

What can you do?

Use these resources to help you manage indoor asthma triggers.

Learn More

Links referenced
About Asthma    http://msdh.ms.gov/msdhsite/index.cfm/43,7183,235,425,html
Indoor Triggers    http://msdh.ms.gov/msdhsite/index.cfm/43,7182,235,425,html
Outdoor Triggers    http://msdh.ms.gov/msdhsite/index.cfm/43,7181,235,425,html
Parents    http://msdh.ms.gov/msdhsite/index.cfm/43,7180,235,425,html
Action Plan    http://msdh.ms.gov/msdhsite/index.cfm/43,7178,235,425,html
Asthma Resources    http://msdh.ms.gov/msdhsite/index.cfm/43,0,235,html

Find this page at http://msdh.ms.gov/msdhsite/index.cfm/index.cfm

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