Four reasons your toothbrush should not be in a bathroom

While the bathroom might seem like the obvious place to keep your toothbrush, it is one of the worst spots for it. Placing your toothbrush in the bathroom can put your dental health at risk from bacteria to humidity.

Studies have shown that 60% of toothbrushes stored in the bathroom are teeming with harmful bacteria like Serratia, E. coli, Giardia, and Salmonella, often spread through airborne particles from flushing toilets.

“The main concern is not with the presence of your own fecal matter on your toothbrush, but rather when a toothbrush is contaminated with fecal matter from someone else, which contains bacteria, viruses or parasites that are not part of your normal flora,” explains study author Lauren Aber, a graduate student of Quinnipiac University in Hamden, CT.

Here’s why storing your toothbrush in the bathroom might be putting you at risk:

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1. Bacteria are everywhere

Even with frequent cleaning, bathrooms are hotspots for bacteria. When you flush the toilet, wash up, or even brush your teeth, bacteria from these activities can be released into the air, landing on your toothbrush and other surfaces. These germs can stick around, making your toothbrush a source of illness.

2. Humidity feeds germs

Bathrooms, especially those without good ventilation, are usually very humid, creating an ideal environment for bacteria and mould. The dampness allows germs to grow on surfaces, including your toothbrush. Studies suggest that storing your toothbrush in a humid bathroom can increase your risk of bacterial growth, so drying it out regularly and rinsing any water residue can help reduce the risk.

3. Proximity to the toilet

Most bathroom setups have the toilet right next to the sink. When flushed, toilets release tiny droplets and bacteria into the air, contaminating toothbrushes left out nearby. To keep your toothbrush clean, store it away from the toilet, rinse it before use, and, if possible, keep it upright with a protective cover.

4. Risk of mould and mildew

With the dampness of most bathrooms, mould and mildew can easily form on a toothbrush, especially if it’s stored in an enclosed cabinet. Mould on your toothbrush can lead to various health issues, from allergies to respiratory problems. Rinse your toothbrush after each use and allow it to air-dry in a well-ventilated area, or ideally, outside the bathroom entirely.

Try keeping your toothbrush in a dry, clean spot outside the bathroom for cleaner, healthier brushing. Your teeth will thank you.