TL;DR – Mold and dizziness may be connected for some people, particularly when hidden mold causes ongoing exposure. However, mold is only one of many possible causes of vertigo. If you have unexplained dizziness, address any mold problems in your home while also seeking a comprehensive vestibular evaluation to identify the true cause.
If you’ve been struggling with unexplained dizziness or vertigo, you may have wondered whether mold could be playing a role.
It’s a question I’ve been asked more frequently recently, and several patients have contacted me after discovering hidden mold in their homes.
What Is the Connection Between Mold and Dizziness?
The short answer is:
Possibly, but the relationship is more complicated than many websites suggest.
Let’s look at what we know.
Where Hidden Mold Is Commonly Found
One challenge is that mold isn’t always visible.
According to the Centers for Disease Control and Prevention, mold commonly grows anywhere moisture is present, including:
- Behind drywall
- Under sinks
- Around plumbing leaks
- Inside insulation
- In carpeting
- Inside HVAC and air duct systems
Many homeowners don’t discover it until water damage is uncovered or professional remediation is performed.
Can Mold Exposure Cause Vertigo?
Research has clearly established that damp, moldy indoor environments can contribute to health problems, particularly:
- Nasal congestion
- Sinus symptoms
- Cough
- Wheezing
- Eye irritation
- Asthma flare-ups in susceptible individuals
There are also reports of people exposed to mold experiencing neurological symptoms such as headaches, fatigue, difficulty concentrating, and dizziness. However, researchers have not yet established exactly how often mold directly causes vertigo or which individuals may be susceptible.
In other words:
Mold exposure may be one contributing factor for some people, but it is rarely the only possible explanation for dizziness or vertigo.
Three Clinical Cases That Made Me Consider Mold Exposure
As a vestibular physical therapist, I always look for possible contributing factors when someone develops dizziness.
Recently, I’ve worked with two patients who developed vertigo along with several other neurological complaints. During their evaluations, both patients shared that significant hidden mold was recently discovered inside their homes after undetected plumbing leaks. The timing correlated with the onset of their vertigo.
In another patient case, mold contamination was found throughout a home’s HVAC duct system, allowing mold spores to circulate throughout the house until the system was professionally remediated. The patient had to move out temporarily for his entire house to be remediated by a professional company and the HVAC system had to be replaced.
I have also wondered whether mold exposure may have contributed to some of my own symptoms years ago while living in another home. Although I can’t prove it, my fatigue and headache symptoms always improved when I would travel out of town and then dramatically improved after moving out. We didn’t see evidence of mold but there was always a musty smell.
I tested our home for mold using a self-test kit and it was negative. But when my husband went back to the home to help our landlord fix it up to sell it weeks after we moved out, he saw some black mold stains seeping through the drywall. I realized that we always had dehumidifiers running 24/7 for years since the home is right at the beach in San Diego. Now I suspect that we were living with mold in the drywall the whole time and did not even know it.
These experiences don’t prove mold caused the dizziness, the fatigue, headaches, or other neurological symptoms. These case examples do serve as reminders that environmental exposures to mold sometimes deserve consideration, especially when symptoms are difficult to explain.
If you feel better when you stay away from your home like I did, then it may be worth considering the possibility that you have a hidden mold problem that has gone undetected thus far.
Why You Shouldn’t Assume Mold Is the Only Cause
One of the biggest mistakes I see is assuming that finding mold automatically explains every symptom.
Dizziness has many possible causes, including:
- Benign paroxysmal positional vertigo
- Vestibular neuritis
- Vestibular migraine
- Concussion
- Cervical disorders
- Cardiovascular conditions
- Medication side effects
- Anxiety
- Multiple conditions occurring at the same time
Even if mold exposure is present, it doesn’t necessarily mean it is the primary cause of vertigo.
A comprehensive vestibular evaluation remains the best way to identify the root cause. For example, I suspect that I had mold-related chronic fatigue and headaches, but I also experience recurrent BPPV whenever the Santa Ana winds blow. Those are two very different root causes of dizziness and vertigo, and they can both be true at the same time.
Signs You Should Check Your Home for Hidden Mold
If you notice:
- A persistent musty odor
- Previous flooding
- Water stains
- Plumbing leaks
- Visible mold growth
- You feel better when you stay overnight away from your home
It’s worth having the home inspected for mold and correcting any moisture problems.
The CDC recommends removing mold promptly and fixing the underlying water source rather than simply cleaning visible mold.
One issue is that mold does not always show up on DIY home test kits for mold, as I personally found out the hard way. You may need to hire a professional to get accurate test results.
Don’t Overlook Everyday Sources of Mold
Large hidden mold problems aren’t the only places mold can grow. Mold can grow on equipment you use regularly for personal care or hygiene.
Items that stay moist—including water flossers (Waterpiks), humidifiers, CPAP equipment, and reusable water bottles—should all be cleaned according to the manufacturer’s instructions to reduce mold and bacterial buildup.
When to Seek a Vestibular Evaluation
If dizziness persists after mold remediation, or if no mold is found, a comprehensive vestibular evaluation can identify other common causes such as BPPV, subacute vestibular neuritis, or vestibular migraine.
Bottom Line
If you’ve developed unexplained dizziness or vertigo and you also discover hidden mold in your home, it’s reasonable to discuss both issues with your healthcare providers.
Mold exposure may be one piece of the puzzle for some individuals, but it should never replace a thorough medical and vestibular evaluation to identify all the root causes of your symptoms.
Frequently Asked Questions
Can mold cause dizziness?
Mold exposure may contribute to dizziness in some people, particularly those who are sensitive to mold or have prolonged exposure. However, dizziness has many possible causes, so a complete medical and vestibular evaluation is important.
Can mold cause vertigo?
Some people report vertigo after mold exposure, but current research has not established that mold directly causes vertigo in every case. Mold may be one contributing factor among several.
Where is hidden mold usually found?
Hidden mold commonly grows behind drywall, under sinks, around plumbing leaks, inside HVAC systems, beneath carpeting, and anywhere moisture accumulates.
Should I remove mold if I have dizziness?
Yes. If mold is present, the underlying moisture problem should be corrected and the mold remediated. However, don’t assume mold is the only explanation for dizziness.
What else can cause dizziness besides mold?
Common vestibular causes include BPPV, vestibular neuritis, vestibular migraine, concussion, medication side effects, cardiovascular conditions, cervical disorders, and anxiety.
Disclaimer
This blog is provided for informational and educational purposes only. The content and any comments by Dr. Kim Bell, DPT are not intended to be a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or other qualified health provider with any questions you may have regarding a medical condition. The details of any case mentioned in this post represent a typical patient that Dr. Bell might see and do not describe the circumstances of a specific individual.
