Mold in Your Crawl Space: Potential Health Problems

What are the mold in crawl space health problems that can arise? This is definitely a big question many people ask, especially when they’re trying to discover whether or not they have mold without actually going into the crawl space.

The health impacts of mold can vary wildly. However, these are a few common health impacts you may experience from mold in your crawl space. 

Respiratory Issues

Your body isn’t meant to breathe in mold. Any type of additional particles in your air will eventually cause breathing issues. Especially when it comes to mold, those breathing issues can easily develop into a respiratory problem.

Among others, mold can cause sneezing, wheezing, difficulty breathing and sinus congestion. Regardless of how serious these problems end up being, they can at least be extremely frustrating.

Additionally, even mild respiratory issues can develop into much more serious issues. Your body expends energy when dealing with health problems. That can make you tired and lethargic all the time. 

Exacerbation of Allergies and Asthma

Does anyone in your home have allergies, asthma or a tendency toward getting sick? Crawl space mold can make those problems even worse.

If you already have allergies, asthma, or both, your body already tends to overreact to otherwise non-dangerous particles in the air. Mold tends to cause more problems than other particles. That may mean you can end up dealing with pretty serious respiratory problems.

Additionally, certain types of inhaled mold spores can actually cause brand new types of asthma and allergies. Dealing with mold as soon as you discover it can help you avoid developing these respiratory problems. 


At its worst, mold can actually be toxic itself. Mold excretes a certain type of compound called a mycotoxin, and higher levels of mycotoxins can cause dangerous and even potentially fatal complications.

Scientists hypothesize that all mold excretes mycotoxins. That means even relatively “benign” cases of mold in your crawl space can actually become toxic if it grows too much.

If you have a particularly dramatic case, like black mold in your crawl space, mold secretions can be even more dangerous. If you’re dealing with black mold in your crawl space, contact a JES expert immediately for more help.

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