
Is Your Bathroom Hiding a Dirty Secret?
Let’s talk about your bathroom. You probably spend much of your day there, from your morning routine to your evening wind-down.
But how clean do you really keep it?
Maybe you’re a neat freak, scrubbing every surface until it sparkles. Or perhaps you’re more of a “clean enough” type, giving things a quick wipe when they start to look questionable.
But here’s the real question: do you close the toilet lid before you flush?
If you’re like most folks, you probably assume that shutting the lid helps contain the, well, “stuff” that swirls around when you flush.
But brace yourself because a new study has revealed a dirty little secret about your porcelain throne.
Researchers from the University of Arizona decided to investigate how much closing the toilet lid really matters when trying to prevent the spread of viruses in your bathroom. They focused on toilets commonly found in U.S. households and public restrooms.
The team added a harmless virus called MS2 (often used as a stand-in for nastier bugs like norovirus) to the toilet bowl water. Then, they flushed with the lid up and down and sampled various bathroom surfaces to see where the virus ended up.
The results were eye-opening, to say the least.
It turns out that closing the lid made almost no difference in terms of viral contamination. MS2 was found on every surface tested, from the toilet seat to the floor to the walls, regardless of lid position.
In fact, the toilet seat itself was the most contaminated spot, likely due to the way the air flows around it during flushing. And public toilets, which often don’t even have lids, showed consistently high levels of MS2 on the seat.
They also looked at what happens when you clean the toilet bowl with a brush, with and without disinfectant. While using a disinfectant significantly reduced the amount of MS2 in the bowl water and on the brush itself, it didn’t completely eliminate contamination on other bathroom surfaces.
So, what does this mean for your health? Well, while MS2 is harmless, the viruses it represents aren’t. Norovirus, for example, can cause nasty bouts of vomiting and diarrhea. And it only takes a tiny amount of these viruses to make you sick.
When you flush, those germs can linger in the air and on surfaces, just waiting for you to touch them and then touch your face or food. It’s a recipe for a sick day (or week).
But don’t panic just yet. There are steps you can take to minimize your risk:
- Add disinfectant to the bowl BEFORE flushing, and let it sit for a few minutes.
- Regularly disinfect ALL bathroom surfaces, not just the toilet.
- Wash your hands thoroughly after using the bathroom, and avoid touching your face.
- If someone in your household is sick, be extra vigilant about cleaning and disinfecting.
Your bathroom may never be 100 percent germ-free, but you can drastically reduce the spread of nasty viruses with a little extra effort.
P.S. Avoid THIS other public restroom hazard. [GROSS!]
Source:
Goforth, M. P., Boone, S. A., Clark, J., Valenzuela, P. B., McKinney, J., Ijaz, M. K., & Gerba, C. P. (2024). Impacts of lid closure during toilet flushing and of toilet bowl cleaning on viral contamination of surfaces in United States restrooms. American Journal of Infection Control, 52(2), 141-146. [doi. org /10.1016/j.ajic.2023.11.020]

Written By Dr. Scott Olson, ND
Nearly 25 years ago, failed mainstream medical treatments left Dr. Olson in constant pain – and his health in ruins. And that’s when he did something REVOLUTIONARY. He began his career in medicine – and dedicated his life to uncovering the true, underlying causes of disease.
Through his innovative medical practices in Tennessee and Colorado, Dr. Olson has helped cure countless seniors from across America of arthritis… heart disease… diabetes… and even cancer. All without risky prescription drugs or painful surgeries.
View More Free Articles
Do THIS Every 20 Minutes to STOP Digital Eye Strain
Our eyes are under assault—they are the true victims of our current digital age. And it’s because we are constantly glued to screens… phones, tablets, computers, TVs—you name it. Unfortunately, that screen time is taking a serious toll. Digital eye strain affects millions worldwide. In fact, up to 50 percent of computer users could develop...
Mailbag: The Calcium Mistake That's Hardening Your Arteries
“What type of calcium is best to take with bisphosphonates for osteoporosis? I know some varieties can build up in arteries. Thanks for the help.” —Bone Builder Hi Builder, When a patient asks me about calcium, I ask them a peculiar question in return… “Ever wonder how elephants and giraffes build and maintain their massive...
Doctor-Approved Method to Ditch Blood Pressure Meds
In a world where drug solutions dominate healthcare, it’s refreshing to discover that best remedies sometimes don’t involve a single pill. A groundbreaking study shows simple relaxation techniques could be your secret weapon against one of America’s deadliest health conditions. Best of all? It’s free, easy to start right away—and your results are bound to...
Trouble Hearing? Your Heart Could Be at Risk
With research exploding and data pouring in, scientists are uncovering some weird (and surprisingly helpful) health connections. Today’s odd couple? Hearing loss and heart failure. Turns out your ears and your ticker are more connected than you ever imagined. A major study published in the journal Heart looked at over 164,000 people for nearly a...
Stay Up Late? It Could Destroy Your Mental Health
If you dread mornings but come alive at night, there’s concerning new research you need to know about. A recent study found that “night owls” are at higher risk for depression. But before you rush to set your alarm to get up with the sun tomorrow, there’s more to the story… Chronotypes are essentially your...
Go from Flabby to Fit with this Common Vitamin
If you’re like many of us, you woke up one day, looked in the mirror, and realized you’re no spring chicken anymore. Even worse—when you weren’t paying attention—it seems you somehow misplaced the muscles of your youth and have gone from fit to flabby. Aging has a way of humbling us like that. But scientists...
Seasonal Allergy “Off Switch” Discovered in the GUT
“Doc, why am I suddenly suffering from seasonal allergies when I’ve never had them before?” It’s a question I get all the time—and my answer might surprise you. Stop looking up at the trees—and start looking down at your gut… Your sneezing fits, itchy eyes, and runny nose might have more to do with what’s...
“Canary in the Coal Mine” Test Sniffs Out Brain Issues Early
One of the most common questions I get is how to tell if you’re starting to experience cognitive decline. I get it—losing your memory is scary, especially when it sneaks up on you. But here’s some exciting news that might put your mind at ease. A fascinating new study suggests that your nose might be...
BEAT Stubborn Leg Swelling Without Dangerous Diuretics
“I need help with edema.” —Swollen Hi Swollen, When patients complain of edema—fluid retention that causes feet, ankles, and legs to swell—I explain that, while conventional medicine immediately prescribes diuretic drugs, nature offers us effective solutions we can try first. I’ll share those in just a moment, but first, let’s take a quick look at...
Mental Health Linked to 30% FASTER Aging [6-Step FIX]
Your mind and body are more connected than you might realize—and a groundbreaking new study proves just how profound that connection really is. In fact, it’s this mind-body link that helps explain why battling depression can put you on the fast track to physical decline. Depression is the most common mental health condition worldwide. We’ve...