You're probably brushing your teeth with fecal matter
How to Store Your Toothbrush: The Most Sanitary Way to Do it | Apartment Therapy
Elmwood Dental Group LLC - 🧐Monday's Mental Floss... Don't store your toothbrush too close to the toilet. You're storing it upright in a cup, so it's not touching another brush — but
Should You Use a Toothbrush Cover? | Riverside Dental
Amazon.com: iHave Toothbrush Holders for Bathrooms, 2 Cups Toothbrush Holder Wall Mounted with Toothpaste Dispenser - Large Capacity Tray, Cosmetic Drawer - Tooth Brushing Holder & Bathroom Accessories : Home & Kitchen
What's the Most Sanitary Way to Store Your Toothbrush? | SELF
3 Ways to Keep a Toothbrush Clean - wikiHow
3 Places To Never Store Your Toothbrush - Biotic Breath - Probiotic Dentistry