These days practically everyone has a cell phone, and it goes everywhere you do.
But that also means it's picking up every germ you encounter, too.
"I carry my cell phone around," said dermatologist Dr. Laci Theunissen. "It's in my purse, my children are playing with it. I bring it to the bathroom sometimes, multi-tasking."
And that means some nasty little organisms may be hitchhiking from an unsanitary surface to your face.
"A lot of people don't think about it," Theunissen said.
To find out just what is lurking on that surface, cell phones were taken to a lab.
The phones were swabbed and the swabs were incubated for three days at 37 degrees Celsius - roughly body temperature - to see what would grow.
Streptococcus, as in strep throat, and staphylococcus, as in staph infection, along with a few other types of bacteria were found on all the phones we tested.
But there is good news.