Knoxville, 42, has been wounded several times while performing dangerous stunts in reality series 'Jackass', reported Contactmusic.
"I've got 20 doctors' numbers in my phone! Recently, I fractured my elbow and right now I have a torn shoulder," Knoxville said.
"My back's blown out but I don't know what else to do besides move forward. It's what I do and a big part of it, so I don't really think about it," he added.