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Can Mold Cause Cancer?

By October 20, 2023Home Maintenance, Mold
Can mold cause cancer

Mold, a common yet insidious intruder, often infiltrates homes unnoticed, leaving behind unpleasant odors and potential damage. Its silent spread is a nightmare for homeowners, renters, and real estate professionals alike. Beyond visible havoc, mold also casts a long shadow of doubt on the safety of the spaces we inhabit most. But, in addition to its known effects, can mold cause cancer? If this question has crossed your mind, you’re not alone. Below, we will explore the issue to provide answers and solutions on the matter.

Understanding Mold and Its Potential Health Effects

Before diving into the connection between mold and cancer, it’s crucial to understand what mold is and the health risks it may pose. Mold, a type of fungus, thrives in damp and dark environments, both indoors and outdoors. It reproduces by releasing tiny spores into the air.

One particular type of mold that has garnered significant attention is Stachybotrys chartarum, commonly known as black mold. This mold type often links to severe health issues due to the mycotoxins it can produce. Being informed about black mold is essential as its removal and handling require professional intervention.

Exposure to mold, especially black mold, can trigger a range of health issues, especially for individuals with allergies or respiratory conditions. Common symptoms include sneezing, coughing, wheezing, nasal congestion, and skin irritation. In severe cases, mold exposure may trigger asthma attacks or worsen existing respiratory conditions. However, it’s crucial to note that most molds are not carcinogenic, though black mold exposure can lead to health complications due to its toxic nature.

It is a myth that all mold can cause cancer

Debunking the Myth: Mold and Cancer Connection

While some types of mold, like black mold, produce toxins known as mycotoxins, the link between mold exposure and cancer remains inconclusive. Researchers have conducted extensive studies, and the current scientific consensus suggests that mold exposure alone does not directly cause cancer.

However, prolonged exposure to certain mold types, especially black mold, can weaken the immune system. Over time, this can make individuals more susceptible to infections and potentially increase cancer risk. Additionally, inhaling mold spores can irritate the respiratory system, which may exacerbate respiratory conditions and indirectly contribute to cancer-related complications.

Minimizing Mold Exposure

While researchers have yet to establish a direct link between mold and cancer, taking precautions to minimize mold exposure is crucial to maintaining a healthy living environment. Here are some practical tips:

Ensure Proper Ventilation: Good airflow prevents moisture buildup, reducing mold growth likelihood. Use exhaust fans in bathrooms and kitchens, open windows when weather permits, and consider installing a dehumidifier in damp areas.

Address Water Leaks Promptly: Fix water leaks and plumbing issues without delay, as mold thrives in moist environments. Regularly inspect your property for signs of leaks, such as water stains or musty odors.

Control Humidity Levels: Aim to keep indoor humidity levels below 50%. Utilize air conditioning or dehumidifiers in humid climates or during summer to maintain an environment that discourages mold growth.

Ensure Proper Insulation: Adequate insulation prevents condensation and moisture buildup on walls, ceilings, and floors, mitigating mold growth risk.

Regular Cleaning: Clean and disinfect mold-prone areas like bathrooms, kitchens, and basements regularly. Use mold-resistant products and materials whenever possible.

Preventing mold with cleaning products

Other Recommended Maintenance

Besides addressing mold concerns, keeping up with other maintenance tasks ensures a safe and comfortable living environment. Regularly inspect and repair your roofing, gutters, and downspouts to prevent water damage. Additionally, check your home’s foundation for cracks that could lead to moisture problems. Pest control is crucial as insects and rodents can cause damage and create unsanitary conditions.

When to Call a Professional

If, despite your best efforts, you discover or suspect mold growth, it’s time to call a professional. They can provide a thorough inspection and suggest a remediation plan. Also, if you plan to buy or sell a home, engaging a professional home inspector to assess the property for mold and other issues is an important step.

Mold professionals typically employ various methods to address mold issues, and the right one depends on the extent of the infestation and the type of mold present. Understanding various methods, pricing, and duration helps make informed decisions when hiring a professional for mold issues. Costs range from $500 to over $6,000 depending on the location and method used, and remediation usually takes one to five days.

Here Are Some Common Professional Mold Removal Methods:

Mold Removal by Hand: Traditional, quicker method; removes and disposes of contaminated materials; cleans and disinfects remaining surfaces.

Dry Ice Blasting: Uses dry ice pellets to freeze and remove mold; faster, less invasive, but more costly than manual removal.

Media Blasting: Blasts affected areas with abrasive materials like baking soda to remove mold; effective for severe infestations, but messy.

Chemical Remediation: Utilizes EPA-approved chemicals to kill and remove mold; quicker method, not suitable for those with chemical sensitivities.

HEPA Vacuuming: Captures mold spores from air and surfaces; often used as a final cleaning step post other removal methods.


Mold is a common concern with the potential to affect your property and health. While the answer to whether mold can cause cancer is not definitively established, minimizing exposure is a prudent step toward a healthy living environment.

However, if you suspect a mold issue in your home, don’t hesitate to take action. Schedule an inspection with Atkinson Inspection Services to ensure a thorough examination and pave the way for a safe and comfortable environment.