It was recently brought to my attention an interesting urban legend that wearing ear plugs can cause a 700 fold increase in germs in the ear canal. Curious about how this statement came to life, I scoured the internet and discovered the following info that may have relevance for people who regularly use earbud devices that require insertion into the ear canal whether it be ear plugs, headphones , hearing aids , stethoscopes , etc. In 1992, US Naval researchers published a study that discov…