Oral sex can lead to oral tumours. That is the conclusion of researchers who have proved what has long been suspected, that the human papilloma virus can cause oral cancers.The risk, thankfully, is tiny. Only around 1 in 10,000 people develop oral tumours each year, and most cases are probably caused by two other popular recreational pursuits: smoking and drinking. The researchers are not recommending any changes in behaviour.The human papilloma virus (HPV), an extremely common sexually transmitted infection, has long been known to cause cervical cancers. Several small studies have suggested it also plays a role in other cancers, including oral and anal cancers.
