PH
Phones constantly move between hands, pockets, bags, tables, public spaces, and sometimes bathrooms.
Studies have found that mobile-phone surfaces can carry diverse bacteria, including microbes transferred from human skin and the surrounding environment.
That doesn't automatically mean your phone will make you sick, but it does make phones potential surfaces for microbial transfer.
Regular handwashing and cleaning your device according to the manufacturer's instructions can reduce buildup.
The object you wash your hands before touching may be the same object you immediately pick up afterward.
© University of Arizona