What Are the Health Risks of Living in a Mold-Infested Home?

Exposure to mold spores often triggers allergic reactions similar to hay fever. You might notice a runny or stuffy nose, itchy or watery eyes, and frequent sneezing. For those with asthma, mold can provoke more frequent and severe attacks, causing wheezing, chest tightness, and shortness of breath. These symptoms may improve when you leave the affected environment and return when you re-enter.

Persistent coughing and throat irritation are also common complaints in moldy homes. The spores and microscopic fragments become airborne and are easily inhaled. This can lead to sinus congestion and a feeling of pressure in your face. If you or a family member has unexplained respiratory symptoms that seem linked to being at home, indoor mold could be a contributing factor.

While most health effects are allergic or irritant in nature, certain types of mold produce mycotoxins. Exposure to high levels of these toxins, typically through inhalation, can lead to more severe symptoms. These may include neurological effects like headaches, memory problems, and dizziness, though such cases are far less common in typical home environments.

Toxic mold syndromes are rare and often involve prolonged, heavy exposure in water-damaged buildings. General fatigue, muscle aches, and a general feeling of being unwell are sometimes reported. It is important not to self-diagnose based on these symptoms, as they overlap with many other conditions. A medical professional can help determine the true cause of your symptoms.

If you suspect mold is affecting your health, start by reducing your exposure. Increase ventilation by using exhaust fans and opening windows when weather permits. Use a dehumidifier to keep indoor humidity below 60 percent, ideally between 30 and 50 percent. Clean small areas of surface mold on non-porous materials with a detergent solution, but always wear gloves, goggles, and an N-95 mask.

For larger infestations, or mold in your HVAC system, porous materials like drywall, or insulation, professional remediation is necessary. The pros follow specific protocols to contain spores, safely remove contaminated materials, and thoroughly dry the area. They use tools like structural drying and dehumidification equipment. After remediation, fixing the original leak with a plumber or roofer is essential to prevent recurrence.