A US man who accidentally sprayed expanding foam into his urethra in a bid to treat his impotence may never be able to use his penis again, doctors have warned.
The 45-year-old's partner had inserted a straw attached to a can of weatherproofing spray foam into his urethra and inadvertently pressed the button, deploying the foam.
For three weeks he struggled with difficulty urinating, pain around the opening of his urethra and blood coloured urine.
After scans showed the foam had hardened and become "anchored" in the man's penis, doctors operated to remove the foreign object inside him.
However, doctors were forced to create a new opening between his scrotum and his anus in order to successfully remove all of the foam, some pieces measuring up to nearly 11cm in length.