'It was just a precaution': Jason Momoa 'is doing OK' after sparking concern by revealing he had an MRI scan

Jason Momoa is reportedly doing 'OK' after undergoing an MRI scan.

The actor, 42, sparked concern among fans and fellow stars as he shared a shirtless photo of himself on Instagram during a recent hospital visit.

However, a source has now told PEOPLE magazine that Jason is doing 'OK' and that the scan was done as 'a precaution'.

Worries: Jason Momoa, 42, sparked concern among fans and fellow stars as he shared a shirtless photo of himself on Instagram during a recent hospital visit

 Worries: Jason Momoa, 42, sparked concern among fans and fellow stars as he shared a shirtless photo of himself on Instagram during a recent hospital visit

Mystery: Jason put work commitments to one side while undergoing tests on an apparent head injury over the weekend

Mystery: Jason put work commitments to one side while undergoing tests on an apparent head injury over the weekend

The 'Aquaman' star posted the snap on Sunday and revealed he was feeling 'thankful'.

Captioning the image, in which the muscular star lay prostate outside the cylindrical scanner, he wrote: 'You got to break some eggs to make an omelette. aloha j. thankful for my ohana and friends.' 

The post resulted in some worried replies from fans and famous friends, as his Justice League castmate Gal Gadot replied: 'Oh no!'

On location: The Aquaman star posted the snap on Sunday and revealed he was feeling 'thankful'. Jason pictured in Rome, Italy, earlier this month

On location: The Aquaman star posted the snap on Sunday and revealed he was feeling 'thankful'. Jason pictured in Rome, Italy, earlier this month

Friends: The post resulted in some worried replies from fans and famous friends, as his 'Justice League' castmate Gal Gadot replied: 'Oh no!'

Friends: The post resulted in some worried replies from fans and famous friends, as his 'Justice League' castmate Gal Gadot replied: 'Oh no!'

'Candy' actor Pablo Schreiber added: 'Oh no! You alright dude?' while Oscar-winning actress Octavia Spencer also added a set well-wishing of emojis. 

Comments of concern from supporters of the actor also flooded in.

One said: 'Hope the doctors find the problem and can help fix it!! Sending healing vibes.' 

Elsewhere another wrote: 'Hopefully, this is a scene from a new movie... if not, prayers up!!! Much love, aloha!'

MailOnline has reached out to Jason's representatives for comment. 

Checking in: The post prompted inevitable concern from followers on Sunday evening

Checking in: The post prompted inevitable concern from followers on Sunday evening 

While the actor offered no additional context, he previously admitted to taking on many of his own daredevil stunts - including one that involved a recent motorcycle chase through the streets of Rome. 

Speaking about his latest role with Entertainment Tonight,  he said: 'It's fun, I get to play the bad guy, which I haven't gotten to do for a while.

'Now, I get to be the bad boy. A very flamboyant bad boy. A little panache!'

Main man: The actor has been on location in Rome while shooting high octane scenes for Fast X, the forthcoming tenth instalment in the hugely popular Fast & Furious film franchise

Main man: The actor has been on location in Rome while shooting high octane scenes for Fast X, the forthcoming tenth instalment in the hugely popular Fast & Furious film franchise

The hospital visit post on Sunday comes a few weeks after Jason had a hernia operation on March 27, just one day before attending the Academy Awards.

Speaking on the red carpet before the show, he said: 'I had surgery yesterday. I had a hernia surgery yesterday.'

When asked why he needed the operation, he quipped: 'Throwing bodies around. I'm getting old, bro. It ain't that CinemaCon from 2016, you know what I'm saying?'

The actor also suffered a series of injuries while filming his lead role in DC Comics adventure Aquaman and its recent sequel, Aquaman and the Lost Kingdom. 

He told Ellen DeGeneres:  'I messed up my eyes. I just got something in it that kinda cut it up, and then I've gotta get surgery. I have a hernia, I've got ribs out. I'm just getting beat up.'

When asked why he keeps getting injured during filming, the actor pointed to his enthusiasm for work as a main cause.

Getting involved: Jason previously admitted to taking on many of his own daredevil stunts - including one that involved a recent motorcycle chase through the streets of Rome

 Getting involved: Jason previously admitted to taking on many of his own daredevil stunts - including one that involved a recent motorcycle chase through the streets of Rome

'I just kinda give it,' he said. 'I love my job and I get a little too excited. The age thing. I'm an aging superhero now.'

Jason has kept busy over the last few years, but he also has a number of upcoming projects in the pipeline.

The actor has already completed filming for The Last Manhunt, the story of a Native American couple that goes on the run after one commits murder for love.

For a good cause:  The actor also suffered a series of injuries while filming his lead role in DC Comics adventure Aquaman (pictured) and its recent sequel, Aquaman and the Lost Kingdom

For a good cause:  The actor also suffered a series of injuries while filming his lead role in DC Comics adventure Aquaman (pictured) and its recent sequel, Aquaman and the Lost Kingdom

He is also rumored to have a main role in Cliffhanger, a remake of the 1993 movie of the same name wherein a mountain climber is caught up in the plot of a group of robbers.

No plot details have been revealed for Fast X, though star-producer Vin Diesel made headlines in November when he asked former co-star Dwayne Johnson to return for an 'important' role in the film.

However fans will have to wait just a little bit longer, with the film expected to go on general release in 2023. 

Loving it: When asked why he keeps getting injured during filming, Momoa pointed to his enthusiasm for work as a main cause

Loving it: When asked why he keeps getting injured during filming, Momoa pointed to his enthusiasm for work as a main cause

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Jason Momoa is doing 'OK' after MRI scan

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