25 Surprising Places Where Bacteria Thrive You Won’t Believe

You can find bacteria everywhere. In fact, there are more bacteria on Earth than stars in the universe. It takes 20 minutes for a bacterium to split into two (if the conditions are favorable). This means, in about eight hours, one bacterium can multiply into 16,777,216 bacteria.

Bacteria can be found on rocks, in oceans, soil, and even arctic snow. Many of them live on various other organisms, including on us.   

It’s a common belief that bacteria are present only in places that look dirty. However, bacteria can be found in seemingly clean places as well. You will be surprised to find out about the places bacteria flourish. While not all bacteria are harmful, and some can actually be beneficial to your health, there are numerous disease-causing bacteria. 

In this list, we will teach you about 25 surprising places bacteria thrive you won’t believe! As an added bonus we’ve also included ways you can combat all this bacteria buildup.

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Sheets and Comforters


Bacteria and germs find our beds just as cozy as we do. They can be found there in abundance. Plus, did you know that bacteria feed on the dead skin, which we shed while sleeping?

Dusting your sheets and comforter before and after use, and washing them every week or two, can help prevent bacteria from accumulating.


Mouth Guards

mouth guard

While playing certain sports, you may be required to use a mouthguard. More often than not, people pop them into their mouths without washing them properly, which can lead to bacterial infections. These need to be cleaned thoroughly before and after every use

When not in use, most people store their mouthguards in a container or their backpack. Because it picks up so many germs from your mouth, which then multiply in the container, it becomes potentially harmful, even more so if you’ve touched it with dirty hands or dropped it on the floor and then put it in your mouth.

Never use your mouthguard without washing it thoroughly first. You may need to scrub it with mouthwash and then rinse it thoroughly. Treasure your health, and don’t compromise it for a moment of ease.


Pet Toys

Pet toys

We understand your love for your pets. However, understanding the extent to which their toys carry bacteria is very important. If you don’t take action to clean, sanitize, and disinfect these pet toys, you are likely to welcome bacterial infections for yourself and your family.

Scrub your pet’s hard toys with a mild bleach solution along with soap and water. As far as the soft toys go, throw them in the washer.




A cafeteria is a place where you go to eat. However, the number of people moving in and out of this place while eating, talking, coughing, sneezing, and doing all sorts of other things makes this place a hub for bacteria.

Food that falls onto the floor, spilled drinks, and numerous other such incidents add to the germ accumulation.

We recommend you to use sanitizer for your hands and try cleaning your sitting area with a disinfectant wipe if possible. Most importantly, wash your hands vigorously before and after your visit to the cafeteria.


Light Switches


Light switches are places in a house or an office that pretty much everyone has access to. Even random people can access light switches and handle them, and you have no idea what their sanitary status is. Really, any place with tons of people touching it carries a plethora of germs.

Clean the light switches with disinfectant wipes and wash your hands thoroughly after touching the light switches.

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