Your toothbrush is a tool you use daily to maintain oral hygiene—but it could be hiding a dirty secret. Studies have shown that germs and bacteria can live on toothbrushes for weeks, especially if they’re not stored properly. One of the biggest culprits? Storing your toothbrush too close to the toilet.
Every time you flush the toilet, it releases a spray of tiny droplets into the air. This phenomenon, known as “toilet plume,” can carry bacteria and microscopic particles, including fecal matter. These droplets can travel as far as 6 feet from the toilet—and if your toothbrush is within range, it could easily become contaminated.
This is especially concerning because toothbrushes are damp after use, and moist environments are ideal breeding grounds for bacteria. Over time, your toothbrush can harbor harmful microorganisms like E. coli, staphylococcus, and even mold, which you definitely don’t want near your mouth.
To protect your toothbrush:
- Store it upright in a holder where it can air dry.
- Keep it at least 4–6 feet away from the toilet, or store it in a closed cabinet.
- Avoid covering the brush head with a cap when it’s wet—this traps moisture and promotes bacterial growth.
- Replace your toothbrush every 3 months, or sooner if the bristles are frayed or after you’ve been sick.
Taking a few simple precautions can go a long way in ensuring that your toothbrush stays clean—and your mouth stays healthy. So the next time you brush your teeth, take a moment to check where you’re storing that toothbrush. Your body (and your immune system) will thank you!