HIV is now a treatable medical condition. In all, 77,000 people are known to be infected with HIV in the UK. However, 28% are unaware of their infection and are therefore unable to access treatment. They are also at risk of unwittingly passing the virus on to others. Many patients who present late to care have been to see their GP in the months or years leading up to their diagnosis but have never been tested for HIV. In the UK National guidelines on HIV testing have recently been published by the RCP to help improve provision and uptake of HIV testing in both primary and secondary care settings.