Syphilis cases increase by 163% in London in five years

Public Health England finds five times more people are diagnosed with disease in London than in any other region

Don’t blame porn for erectile dysfunction. The truth is complex

The claim, in a BBC documentary, that the sexual problems experienced by a few young men can be attributed to pornography is not just simplistic – it smacks of moral panic

Testosterone therapy – hope or hype?

The ‘male hormone’ is being increasingly prescribed, but does it restore vim, vigour and perkiness? What does it do to your sex drive? And can you have too much of a good thing?

Give young people and gay men free condoms to reduce STIs, watchdog says

Draft guidance from Nice says councils should consider schemes to provide free advice and condoms to halt rise in HIV and gonorrhoea

‘Less sex? We just have less to prove’: millennials on sexual encounters

Are young people really less interested in sex, as a study suggests? Here, eight millennials share their views

The NHS must show it cares about gay men’s lives – and roll out PrEP HIV drugs

A landmark court ruling that NHS England can fund the highly effective preventive treatment should be urgently acted on to stop the spread of the disease