Even a minor heart irregularity that he recently revealed and must monitor will have no impact on his goal to play his way back to the top of the world golf rankings, McIlroy told the Telegraph on Friday.
The four-time major victor cut short his 2017 schedule in order to undergo treatment on a rib injury, which he says has now healed, and news of his latest health setback had led to concerns over his plans for this year.
As far as the heart condition, McIlroy said he will have to undergo an echocardiogram every six months and an MRI annually.
Rory McIlroy said a viral infection he contracted 18 months ago in China has led to damage to his heart. "For now, I just need to stay on top of it and have to stay fit", the Northern Irishman told the newspaper. "Hey, I was planning on doing that anyway", he said.
The current World No 11 arrived back to the UAE last weekend and while his nagging 2017-long rib injury has fully healed he has somewhat shocked the golf world with revelations the 28-year old has a heart concern.
McIlroy will tee-up next Thursday in the UAE capital without a victory in 2017 and not having tasted success since capturing the PGA Tour's season-ending 2016 Tour Championship and the week prior the Hazeltine Ryder Cup.
"I don't judge it like that", McIlroy added in the newspaper interview. "I knew within myself that I couldn't compete at the end of last season because I hadn't done the work beforehand, and that's because I hadn't been fit enough and if you can't practice, you can't compete". "Everyone knows I haven't won one in the last three years and that is a worry, yeah".
"I touched upon a recent finding from a routine health and wellness check".
He was referring to the European Tour's Abu Dhabi Championship, where he will begin a busy schedule in the build up to April's U.S. Masters, the only major he needs to win to complete the career grand slam.