A recent study found fecal germs may spread to your toothbrush from other people using your bathroom. Toothbrushes can hold harmful germs including bacteria, viruses, and fungi.

 Infection Control Today (6/3/2015) reported that research from Quinnipiac University presented at the American Society for Microbiology “confirms that there is transmission of fecal germs in communal bathrooms.”

The best way to minimize potential problems is with basic toothbrush hygiene. This includes not sharing your toothbrush, thoroughly rinsing your toothbrush after use and letting it air dry, not routinely covering your toothbrush as this may encourage germs to grow, not letting your toothbrush touch other people’s toothbrushes, and replacing your toothbrush every 3-4 months. In light of the new research, I would keep your toothbrush as far as possible from the toilet and the sink where you wash your hands.