McLoughlin had to come off with a feared broken collarbone in Kanturk’s Cork County Premier IHC first round loss to Castlelyons.
Cork face Waterford in the Munster hurling semi-final on June 7 and he is almost certain to miss that, with the extent of his absence to be established later this week.
“It doesn’t look good for Lorcán,” said Cork selector Johnny Crowley.
“He’ll go and see a surgeon later this week, probably Thursday, and they’ll find out how bad things are then.
“It’s unfortunate for the young fella, he was going very well and obviously it’s unfortunate that it has happened so close to championship, but that’s the way it goes.
“When there are so many club games on, it’s probably like that with the law of averages that someone would get injured.
“There are more this weekend and you just have to keep your fingers crossed that nobody else suffered. It’s a real pity for Lorcán, obviously we’re hoping that it’s not too serious an injury and, if it is, that he’ll have a quick recovery.”
Jimmy Barry-Murphy’s side are already without Christopher Joyce for the Waterford clash after he suffered a cruciate ligament injury in March, while Conor O’Sullivan departed the panel last month.
Nevertheless, Crowley is hopeful that the vacancy created will spur on fringe team members.
“That’s the other side of it now, it’s a chance for someone else to come in and try to stake a claim,” he said.
“We’ll come together next week now to try and prepare for the Waterford match. Lorcán will be a very big loss but we have to focus on what’s ahead.”