"Been struggling for a long time, I've been in a lot of pain for probably about 20 months.
"I've pretty much done everything I could get my hip feeling better.
"I'm in a better place than I was six months ago but I'm still in a lot of pain.
"It's been tough."
Murray said the Australian Open, where had been a finalist five times could be his final tournament.
"Pretty much done everything that I could to try and get my hip feeling better and it hasn't helped loads, I think there is a chance the Australian Open is my last tournament," he said.
"I'm not sure I can play through the pain for another four or five months."
He said he could still "play to a level, but not a level I'm happy about."
The global outpour of support for Murray was immediate with fans and legends alike praising the Scotsman.