10 Warning Signs of Mold Toxicity You Shouldn’t Ignore - Home & Texture
Cleaning Mold Toxicity

10 Warning Signs of Mold Toxicity You Shouldn’t Ignore

January 2, 2024 at 7:26 PM PST

These days, mold is all too common in households. Because it thrives in damp, wet and dark areas, it can be hard to spot. It often takes root in cracks and crevices, underneath baseboards and in dark corners of cabinets. Once mold sets in, it can be very difficult to get rid of. 

One way people recognize that mold is slowly laying siege to a home is the fact that it often gives off a strong, pungent, even rotting smell. At first, this can be disconcerting. People will open containers and jars to see if a certain food is the source of the smell. After a while, perhaps they give up because they can’t find its origin. But this is where things can take an even more drastic turn. Mold not only spreads quickly and easily in homes, emitting smells that assault the nostrils, but as a fungus, it also emits spores into the air. These spores can, in fact, be toxic to people. 

The signs of mold toxicity can run the range from allergic reactions to more serious issues like headaches, dizzy spells and joint pain. Eventually, mold toxicity exposure can even prove to be fatal. For these reasons, it is especially important to keep mold out of a house, or, once it is detected, to be very diligent in cleaning it up. This may even necessitate the help of professional cleaners. 

10 Warning Signs of Mold Toxicity

Mold toxicity and exposure is a common household problem now, and no matter how clean your house is, it can still take over small and forgotten areas. Pictured: Mold on a granite wall.

If you are concerned that you may have mold in your home, but still haven’t been able to find it, pay particular attention to your health and the health of loved ones in your home. Here are 10 warning signs of mold toxicity that indicate the presence of mold in your vicinity and what you can do to clean it up.

Cognitive Issues

Mold exposure can lead to cognitive issues such as brain fog, anxiety and poor memory. Individuals who have dealt with mold toxicity issues in their homes have reported difficulty concentrating and issues remembering certain details, events, etc.


Mold toxicity can lead to issues like fatigue, dizziness, tiredness and in general weakness of the body. If you’ve noticed that any of these symptoms are frequent, check your home for mold, as it might be present. Mold spores can move through nasal passages and the lungs, causing these issues to arise due to low oxygen intake.

Headaches and Migraines

Frequent headaches and migraines are other signs of mold toxicity. If you notice these are occurring more often, check your home for mold toxicity and see a doctor immediately.

Skin Issues

Itching, hives and skin rashes are all signs of mold toxicity in your space. Check your space for signs of mold toxicity and see your dermatologist or doctor ASAP if your skin worsens. Hydrocortisone creams can also help with skin issues.

Respiratory Issues

If you’ve noticed frequent coughing, wheezing, shortness of breath, and even asthma attacks being triggered more often, check your home for mold. Respiratory issues are one of the more severe signs of mold exposure and toxicity.

Digestive Issues

Gastrointestinal issues like nausea, vomiting, abdominal pain, diarrhea and intestinal bleeding can be signs of mold toxicity, particularly in food. Check areas where food and spices are stored for mold. Checking for this is extremely important to not inhale or ingest food products contaminated with mold. These issues can also cause changes in weight and appetite.

Joint Pain and Muscle Aches

Mold toxicity can also cause joint pain, aches and stiffness. It can also result in fungal arthritis and infections. Additionally, it’s important to remain vigilant and look out for numbness and tingling in the body as well.

Mood Changes

Changes in mood, including depression, anxiety and mental health are common signs of mold toxicity. It affects the brain’s neurotransmitter functions and the production of chemicals like dopamine and serotonin. Mold exposure can also lead to insomnia or loss of sleep, which can cause emotional and mental changes.


One of the most common signs of mold is allergies. Symptoms like an itchy throat, watery eyes, congestion, a runny nose and eczema are all warning signs of mold toxicity. If you have a family history of allergies, mold allergies can be worse. 

Sensitivity in Senses

Mold exposure can also cause sensitivity in some of your senses like sight and sound. Increases sensitivity in light exposure and noises is a symptom, causing discomfort and can even lead to other issues like mood changes and insomnia.

Ways To Prevent Mold Toxicity

Check out these 10 warning signs of mold toxicity to check for and get rid of mold asap. Pictured: A living room.

You can prevent mold toxicity by checking regularly for mold, maintaining proper insulation, regularly cleaning all areas of your home and controlling the humidity in your space. Proper ventilation and making sure items are stored safely are also ways to prevent mold toxicity. Try to address and fix water damage in areas like flooring and the walls to prevent mold from growing inside and underneath areas you can’t see. Call a professional if you notice mold growth in your home.




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