A German Motorhead fan has been treated for a blood clot on his brain following a vigorous headbanging session at one of the band's shows.
The 50-year-old heavy metal devotee visited doctors in Hanover, Germany complaining of severe worsening headaches four weeks after attending a performance by the Ace Of Spades hitmakers.
Medical staff found the man had suffered a subdural haematoma, where blood collects under the outer membrane of the brain, and they carried out keyhole surgery to relieve the build-up.
Although there have been three other similar cases in the past, one of which led to death, doctors insist it is a very rare type of injury and not a reason for music fans to change their behaviour at concerts.
Dr Ariyan Pirayesh Islamian says, "We are not against headbanging. The risk of injury is very, very low. But I think if (the patient) had gone to a classical concert, this would not have happened.
"This case serves as evidence in support of Motorhead's reputation as one of the most hardcore rock 'n' roll acts on Earth, if nothing else because of their music's contagious speed drive and the hazardous potential for headbanging fans to suffer brain injury."
The man's headaches subsided following the procedure.