SYDNEY, AUSTRALIA - JULY 18: Justin Bieber performs on stage during the 'Sunrise' broadcast at the Overseas Passenger Terminal on July 18, 2012 in Sydney, Australia. (Photo by Brendon Thorne/Getty Images)

SYDNEY, AUSTRALIA - JULY 17: Justin Biever arrives at the Entertainment Quarter for his exclusive acoustic concert on July 17, 2012 in Sydney, Australia. (Photo by Caroline McCredie/Getty Images)

DISTURBING bloody images have appeared on Twitter which appear to show wounds self-inflicted by Justin Bieber fans.

The hashtag #cutforbieber began to trend on the site as dozens of gory images were posted by fans to the singer to appeal to him not to take drugs.

Photos emerged over the weekend of the teen idol which allegedly showed him smoking marijuana.

One user posted a picture which appeared to show self-inflicted bleeding cuts to her arm and said: “you stop using drugs and we'll stop cutting”.

Another 15-year-old female user who posted a graphic image messaged the singer directly, saying: “@justinbieber Sorry if I scared you honey, it's just that I would do anything for you” shortly after posting the picture.

She later claimed Twitter had contacted her directly to check up on her well being.

However it appears the trend may have been started as a joke on forum website 4chan – despite this many users noticed a worrying amount of graphic pictures appearing on Twitter.

Some of the images fans uploaded were old pictures taken from self-harm websites - however there is still concern as to the influence the trend could have on vulnerable young fans of the singer.

The vast majority of Twitter users were quick to express their disgust at the trend. One said: “Cutting is not something to joke about. There are people who are actually suffering from self-harm, this is so disrespectful. “

Another said: “This whole #cutforbieber thing is disgusting. Self harm is not a joke. It's something people genuinely suffer from. You're a disgrace.”

“#cutforbieber is the most ignorant, repulsive, arrogant, immature and idiotic hashtag by far. cutting isnt something to be taken lightly” was the opinion of another user.

The singer is yet to respond to the trend which has dominated worldwide trends since last night, and is also a trending topic with Irish users.