What does mold-related shortness of breath feel like?
Breathing changes linked to mold can be subtle at first and easy to put down to being out of shape or tired:
- Breathing that feels tight or harder than it should
- Wheezing or a whistling sound when you breathe
- A cough that lingers, sometimes worse indoors
- Feeling winded after light activity
- Symptoms that ease when you leave a certain building
Why might mold and mycotoxins be connected to breathing problems?
Large reviews of the research consistently link damp and moldy indoor environments with breathing symptoms, including shortness of breath, wheeze, and cough, in both allergic and non-allergic people.
Mold and the mycotoxins it produces can trigger an immune and inflammatory response in the airways. That immune response is also what a quantitative blood test can measure.
What other symptoms often show up alongside shortness of breath?
Breathing symptoms rarely appear on their own. They often arrive with sinus congestion, since the same irritation can affect the upper and lower airway, and many people also report fatigue that may be linked to the immune response involved. Brain fog frequently rounds out the picture.
Seeing these together, rather than treating breathing changes in isolation, usually makes an environmental link easier to recognize. That whole-body picture is also what points toward a shared cause.
How do you find out if mold may be a factor?
If your breathing symptoms have no clear cause and ease when you are away from a particular building, that contrast is worth noting. Testing can help you learn whether mold and mycotoxins are part of the picture, alongside the respiratory care your clinician recommends.
We use a quantitative blood antibody test, which measures how your immune system has responded to exposure rather than inferring it from symptoms alone. It works alongside, not instead of, an evaluation of your lungs and airways.
When should you consider testing?
Breathing changes are worth investigating when they are ongoing, ease away from a specific building, and travel with other symptoms. Testing complements an evaluation of your lungs and airways; it does not replace it.
Related symptoms
Frequently asked questions
When is shortness of breath an emergency?
Sudden or severe shortness of breath, chest pain, blue lips, or breathing that stops you from speaking in full sentences needs emergency care right away. This page is about ongoing, milder breathing changes, not emergencies.
Can mold make asthma worse?
Reviews of the research link damp and moldy indoor environments with asthma symptoms and flare-ups. If you have asthma, damp or moldy spaces are worth discussing with your clinician.
Can a blood test help explain my breathing symptoms?
A quantitative blood antibody test can give your clinician objective information about your immune response to mold and mycotoxins. It works alongside, not instead of, an evaluation of your lungs and airways.
What should I do first if I think mold is affecting my breathing?
If your symptoms are not an emergency, note whether they track with time in a damp or water-damaged building, then talk with a clinician about testing and a respiratory evaluation.
Sources
Peer-reviewed research that informs how we describe the link between mold, mycotoxins, and this symptom.
- Mendell MJ, Mirer AG, Cheung K, Tong M, Douwes J. Respiratory and allergic health effects of dampness, mold, and dampness-related agents: a review of the epidemiologic evidence. Environ Health Perspect. 2011;119(6):748-756. View on PubMed
- Quansah R, Jaakkola MS, Hugg TT, Heikkinen SAM, Jaakkola JJK. Residential dampness and molds and the risk of developing asthma: a systematic review and meta-analysis. PLoS One. 2012;7(11):e47526. View on PubMed
- Institute of Medicine (US) Committee on Damp Indoor Spaces and Health. Damp Indoor Spaces and Health. Washington, DC: National Academies Press; 2004. View on PubMed