Health experts have warned that kissing and oral sex may in fact be a lead cause of mouth cancer.
Dr Nigel Carter, chief executive of the Oral Health Foundation, said the Human Papillomavirus (HPV) is being transmitted from person to person at an astonishingly high rate and is linked with mouth cancer.
This link was only found 20 years ago, and before that smoking, drinking and poor diet were believed to be the main causes of the health defect.
But now it is believed that oral sex can be linked to a massive spike in increased cases of mouth cancer in the UK, which has gone up by 49 percent in the last decade and 135 per cent in the last 20 years.
Dr Carter said: “It was once very easy, when issuing preventative messages, to say don’t smoke or drink to excess, but with HPV there isn’t a safe oral sex message.
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