Ronaldo's treatment at the hands of opposition defenders has again been a focus of debate after an incident with Newcastle United defender Steven Taylor last week.
He has also escaped punishment himself this season after kicking out on several occasions, including clashes with Stoke full-back Andy Wilkinson and Tottenham Hotspur centre-half Michael Dawson.
The World Player of the Year accepts he is targeted by his opponents and also acknowledged his battle to keep his temperament in check.
Difficult"I am a target of course, so it is difficult to avoid certain things," said Ronaldo in The Sun. "I try to control my anger. Sometimes it's not easy, though, and it is something I have to improve on.
"Sometimes it is difficult because of the atmosphere in the stadium and the importance of the game.
"I'm only 24, but I have a lot of experience of big games and that helps because you learn through situations.
"If someone kicks me, I get up and I go again. I am not afraid of being kicked, it is part of the game.
"I see it as a challenge that they have to kick me to stop me."
ConfidentUnited face Inter in the second leg of their UEFA Champions League last 16 tie on Wednesday and Ronaldo is confident the holders can go through after a 0-0 draw in the first meeting in Italy.
He added: "We have to score now and we have to win. It won't be easy, but I am confident we will win.
"In the first leg we had clear opportunities and we should have taken them. But we have another opportunity and have our fans to back us up.
"It's hard to win the Champions League and the feeling it gives you is amazing. I want that feeling again and again."