The Manchester United forward has been forced to miss the Three Lions World Cup qualifying clashes with Moldova and Ukraine over the next week, after suffering a nasty cut when training for his club.
Some fans had played down the severity of Rooney's problem, but the 27-year-old has hit back at his critics by posting a picture of the injury to his official Facebook page.
"Some people seem to be questioning my commitment to the England squad and the fact I had to pull out of the two games," Rooney wrote on the social media site.
"There's nothing I would like more than to be helping the lads in the qualifiers. I'm sure people will see from these images the reason why I won't be able to play."
England host Moldova on Friday before travelling to the Ukraine on Tuesday.