By Rosa Silverman1:44PM GMT 12 Nov 2013
Daily Telegraph UK
The scorpion tattoo on the shoulder of the broadcaster David Dimbleby shoulder is sometimes used as a warning sign in the gay community to signal someone has HIV.
The Question Time presenter, 75, decided on the image because Scorpio is his star sign and joked that the little scorpion was “ready to attack my enemies”.
But, perhaps unbeknown to him, it is also one of several hazard signs used by gay men to tell others they are HIV positive.
The stinging tail of the scorpion is said to represent the virus.
Other HIV warning tattoos include biohazard symbols, radiation symbols and red AIDs ribbons.
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Some HIV sufferers get a tattoo as soon as they have been diagnosed while others may wait a while.
David Dempsey, clinical director at the Alexian Brothers Bonaventure House in Chicago, told CNN: "It's to let other men know that they're HIV-positive so that they don't have to come out and say it."