Mandy PhillipsMushrooms, dark green and sometimes black, can grow in your bathroom in various sizes and patterns.
These fungi typically thrive in the moistest areas—around the shower grout, shower drain, bathroom walls, and bathroom floor corners.
Beyond their unsightly appearance, a musty odor often signals their presence.
Since mushrooms are a type of mold, it is crucial to remove them to prevent harmful health effects.
Discover effective strategies for removing mushrooms from your bathroom and preventing their regrowth.
Why Is There a Mushroom Growing in the Bathroom
Mushrooms are fungal spores, tiny single-celled organisms present in the air, clothing, window screens, plants, and many other places.
Having mushrooms in the bathroom is a clear indication of three things: your bathroom has insufficient lighting, high heat, and high humidity.
These conditions support single-celled organisms to come together, start germinating, and form mushrooms as you see them in the bathroom.
If your bathroom has these three factors, you bet that mushrooms will start growing.
Moisture
All types of molds, including fungi like mushrooms, thrive where they can find water for growth and nutrition.
It’s why the bathroom is the perfect area for them, especially the shower area which often gets pretty damp.
Heat
Mushrooms grow where it’s warm, typically between 77 to 86 degrees. They will not grow if the temperature is below 40 degrees.
Therefore, if your bathroom is usually warm, for example when there’s a heater working or when you often like taking long hot showers, mushrooms are more likely to grow there.
Insufficient Lighting
Low lighting isn’t directly related to mushrooms growing in the bathroom.
Nevertheless, darker areas have higher humidity.
Hence, damp nooks and crannies in the bathroom make a suitable breeding ground for mushrooms.
Where Can You Usually Find Mushrooms Growing in the Bathroom
Like all types of mold, mushrooms in the bathroom grow in areas with low light and those that stay moist and warm.
Given the right conditions, mushrooms can grow anywhere in your bathroom.
But you can usually notice them growing from the bathroom floor and walls, especially on the tile grout.
They can also grow on bathroom ceilings, especially if the ceiling is old and damp.
Mushrooms thrive in damp areas, so they are also common in shower areas, especially on the shower drain.
A leaking toilet also makes an attractive place for mushrooms to grow in the bathroom.
Are Mushrooms Growing in the Bathroom Dangerous?
There are many kinds of mushrooms that can grow in the bathroom.
While plenty of them are harmless, some are incredibly dangerous when inhaled or ingested.
Poisonous mushrooms can cause shortness of breath, other respiratory issues, and in severe cases even death.
But generally, mushrooms do not pose a significant risk to health.
The real danger about having mushrooms growing in the bathroom comes from accompanying threats.
Where mushrooms grow, there’s a huge risk that it also serves as a breeding ground for more harmful mold growth like black mold.
And where this mold and mildew can flourish, you expose yourself to risks like severe respiratory illness and serious allergic reactions.
For this reason, it’s always smart to choose the safest route and get rid of any mushrooms in the bathroom, whether they are a health hazard or not.
How to Get Rid of Mushrooms in the Bathroom
As soon as you notice mold and mushrooms growing in the bathroom, act right away before they spread widely.
And no matter what remedy you use, don’t forget to wear gloves, a mask, and other protective gear.
Pick the Mushroom Off the Bathroom Surface
The initial removal of mushrooms that have already grown large is as simple as picking them up off the bathroom floor, wall, or ceiling.
But remember, use gloves when picking the mushrooms up.
Never use your bare hands in handling any type of mold or fungus as it may be toxic.
Use Bleach Chloride on Tiled Walls
Once you’ve removed larger mushrooms growing in the bathroom, it’s important to clean the area to get rid of any remaining mushroom spores.
Clean the bathroom using a 1:3 bleach to water solution, spraying the cleaner before cleaning affected areas with a brush.
Alternatively, you can use fungicide cleaning solutions that not only kill fungi residue but also mold and mildew bacteria, preventing mushrooms growth in the future.
You might need to make several rounds of cleaning to ensure the full eradication of mushroom spores in the bathroom.
Meanwhile, if you don’t want to use bleach, any household cleaner and disinfectant containing benzalkonium chloride will also be effective in removing mushroom spores.
How to Keep Mushrooms From Growing in the Bathroom
So you cleaned the bathroom floor, walls, and the shower drain from growing mushrooms.
But that’s only a temporary solution.
Unless you take necessary action, mushrooms will keep growing in the bathroom.
These tips will help prevent another mushroom from growing in the bathroom.
Ensure Proper Ventilation in the Bathroom
Excess moisture that allows mushrooms to grow in the bathroom is often a result of poor ventilation.
Making sure that the air inside the bathroom is moderately dry makes the space less welcoming for mushroom growth.
So, ensure that the bathroom has proper ventilation.
Open the bathroom window or turn on the exhaust fan, especially after a hot shower or bath.
If your bathroom doesn’t have an exhaust fan, consider installing it for efficient moisture and odor removal.
Fix Bathroom Leaks
Another way to keep the bathroom dry is to make sure that you repair any leaks.
Inspect your bathroom plumbing and ensure there are no broken pipes, leaky faucets, or dripping showerheads.
If you deny mushrooms or mold the moisture it needs to grow in the bathroom, they are less likely to start sprouting again.
Keep Bathroom Towels and Rugs Dry
Fibrous in nature, fabrics like your bathroom towels and rugs are a welcoming place for molds to root, particularly if they are frequently damp.
Once fungi grow in there, it will be hard to get rid of them, so you’ll have to throw these towels and rugs away.
Always keep your towels or any fabric in the bathroom dry.
If you are using shower curtains made of wool or cotton, consider using nylon shower curtains or a shower curtain liner with mold-resistant film or coating, such as LiBa PEVA 8G Bathroom Shower Curtain Liner.
Made with 100% high quality and eco-friendly PEVA material. Free of PVC & chlorine, which means no unpleasant plastic smell or unpleasant chemical fumes. Ultra-smooth design rolls off water beads, keeping your bathroom dry and clean.
Consider Using a Dehumidifier
If excess moisture is a massive issue in your bathroom, even with the bathroom window opened, consider running a dehumidifier to lower the humidity and prevent mushroom growth.
A popular option is the NineSky Bathroom Dehumidifier, which effectively removes moisture and maintains an ideal humidity level.
This compact dehumidifier is perfect for controlling humidity in small spaces like bathrooms. It helps to prevent problems like excess moisture, mold growth, and damp clothes. The auto shut-off and overflow prevention features make it worry-free to use.
Clean the Bathroom Regularly
Deep cleaning should be a routine in your bathroom, once or twice a month, whether you notice mushrooms growing or not.
Besides mopping with soapy water, consider disinfecting the bathroom floor and walls with a mixture of bleach and water.
