Get rid of the moldy mess in your toilet
Mold growth in a toilet bowl happens when stagnant water sits unused, creating the damp conditions that allow mold to thrive in your bathroom.
Poor bathroom ventilation creates humid conditions that encourage mold around your toilet, especially when you don't use an exhaust fan or open windows during showers.
Skipping regular toilet cleaning lets mold take hold in your bowl, so scrub thoroughly with vinegar and baking soda at least once per week.
Hiring a local mold testing and remediation professional provides the expertise you need for larger mold problems, handling thorough removal and prevention strategies with confidence.
Mold thrives in damp and dirty places, so it’s no surprise that toilets are a popular breeding ground for this slimy substance. The good news: While a moldy toilet may look unpleasant, it’s fairly easy to clean. But to prevent it from coming back, it’s important to understand why mold is growing in your toilet in the first place. Let’s look at the most common contributing factors.
If you don’t use the toilet often (maybe it’s in your basement or attached to a guest bedroom), the water will remain stagnant and become more likely to foster mold.
To get rid of mold in the bathroom toilet, follow these steps:
Put on a mask, gloves, safety goggles, and clothing that protects your skin.
Turn on the exhaust fan or open a window to ventilate the area.
Pour one cup of white vinegar into the toilet bowl.
Pour another cup of vinegar into the toilet tank (in case there’s mold there as well).
Sprinkle baking soda into the bowl and under the rim.
Let it sit for an hour.
Use a toilet brush to scrub the entire toilet bowl and rim.
Let it sit for another 15 minutes.
Flush the toilet and avoid using it for a few hours.
Even if you don’t use the toilet much, try to flush it every day. This will help keep the water moving and prevent the mold from coming back.
Mold likes to grow in humid areas with little ventilation, which is why it’s commonly found in toilets and other damp parts of your bathroom. If your bathroom doesn’t have an exhaust fan or a window, your toilet may be particularly susceptible to mold.
Use the instructions above to remove mold from your toilet. To reduce the chance of it returning, use an exhaust fan or crack a window open when bathing or showering. Alternatively, you can run a dehumidifier to reduce bathroom moisture.
Don’t have a fan? Consider installing one. Not only can bathroom exhaust fans reduce humidity and moisture (and potentially prevent mold and water damage), but they can also remove unpleasant odors.
When you don’t clean your toilet regularly, it’s easier for mold to grow inside the bowl. Similarly, if you aren’t cleaning it thoroughly (maybe you’re just giving it a quick spray rather than scrubbing it), you could end up with mold growing in your toilet.
Use the same method listed above to remove mold from a dirty toilet. Going forward, clean your toilet at least once per week with this method:
Put on gloves and safety glasses.
Apply toilet cleaner under the rim, close the lid, and let it sit for 10 minutes.
In the meantime, apply a cleaning spray to the exterior of the toilet. Wipe it away with a paper towel or rag.
Scrub the bowl with a toilet brush.
Close the lid and flush.
Clean the toilet brush with a disinfectant spray and let it sit for a few minutes.
Rinse the brush with hot water in your tub or shower.
Spray the toilet brush basin with the disinfectant spray.
According to the Environmental Protection Agency (EPA), if the moldy area is less than 10 square feet, you should be able to clean it yourself. Toilets generally fit into that category. Just remember to wear the appropriate safety gear, including a mask, glasses or goggles, gloves, and protective clothing.
On the other hand, if you have a larger or persistent mold problem, it’s better to contact a local mold testing and remediation pro. These professionals don’t just remove mold; they also sanitize the area and take steps to ensure the mold doesn’t come back.
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