Say What | Mouthguard prescribed by dentist allegedly made 40-year-old penis shrink

A Swedish man in his 40s has made an astonishing claim, saying that his mouth guard prescribed by his dentist to stop him from grinding his teeth at night, made his penis shrink.

The man who is also believed to be suffering from erectile dysfunction, stopped using the mouth guard after 10 months alleging that the device shrunk his manhood according to reports from Sweden's Kvallsposten newspaper.

According to the unidentified man, his Penis went back to it's normal size a week after he stopped using the mouth guard.

The man’s dentist, who is based in Kronoberg county, has since reported the possible malfunction to Sweden’s Medical Products Agency and says he will stop prescribing the mouth guard until the investigation has been concluded.