More gay and bisexual men than ever are getting tested for HIV, according to new data from the National Gay Men's Sex Survey . The survey is the largest of its kind in the UK and sheds light on the sexual health of men who have sex with men.
The survey found that 77% of gay and bisexual men have been tested for HIV, more than in surveys from previous years (in 2010, this stood at 72%). Over half (55%) of gay and bisexual men had been tested in the past 12 months, compared to 36% in the 2010 survey. 
However, one in four gay and bisexual men have never had an HIV test, while one in three (36%) are not definite about their HIV status.
The research also found that only 60% of those surveyed were happy with their sex life, with the over 65s most likely to be happy with their sex lives, and men in their 40s least likely to be happy.
This major new survey was carried out by Sigma Research at the London School of Hygiene & Tropical Medicine. More than 15,300 men took part to build a picture of sex between men in the UK and what men need to stay safe. The UK's leading HIV and sexual health charity Terrence Higgins Trust commissioned the report as part of the HIV Prevention England programme, funded by Public Health England.
Cary James, Head of Health Promotion at Terrence Higgins Trust, said: "The Gay Men's Sex Survey gives us a well rounded view of the landscape in which we're working, since the data comes from gay and bisexual men themselves. These findings will help shape future sexual health promotion and HIV prevention tactics.
"We're concerned that a third of gay men are not definite about their HIV status - particularly as we know that one in seven men who have sex with men are undiagnosed. Knowing your HIV status is key to tackling the HIV epidemic, as people who are on treatment are highly unlikely to pass on the virus, so it's really important to get tested. Testing is fast, easy and confidential."
Lead researcher Dr Ford Hickson, of the London School of Hygiene & Tropical Medicine, said: "Our findings show that not all men having gay sex are accessing sexual health services regularly. Half of the men we surveyed didn't know that doctors in the UK recommend they test for HIV at least once a year. More positively, the vast majority of men are confident they could access an HIV test if they chose to, and HIV testing services in England are very highly regarded among gay and bisexual men."
Ignorance about how HIV is and is not transmitted were fairly common. One in five men were not confident that even deep kissing cannot pass on HIV, and one in four were not aware that effective HIV treatment reduces the risk of HIV being transmitted. "Myths about how HIV is transmitted create fear and stigma which can discourage people from finding out their HIV status," said Cary. "These findings reaffirm the need to normalise HIV testing and bust the most common misconceptions."
The survey showed that condom use continues to be an issue. One-in-three sexually active gay men had unprotected anal sex with at least one non-steady partner in the past 12 months.
Cary said: "Studies have suggested that condoms have prevented 80,000 infections since the start of the HIV epidemic. But this survey shows that perfect condom use is not a reality for everyone. We must continue to champion safe sex messages to gay men, but we also need to tackle prevention on all fronts if we are to beat this epidemic. That means regular testing, successful treatment and, critically, PrEP - in addition to condoms." 
The survey also shed new light on the extent of drug use among gay men: 7% of the respondents had taken the drugs mephedrone, GBH/GBL and/or crystal meth in the past 4 weeks. These drugs are associated with sexualised drug use or "chemsex".
Meanwhile, a significant proportion (42%) of men living with HIV felt alcohol/drugs played a part in acquiring HIV, although the majority said neither played a part.
Dr Hickson said: "Although chemsex remains a reality for a relatively small proportion of gay and bisexual men, the potential for harm from it is very high. It is important to provide specialist support for men on the chemsex scene. Combining sex and drugs can easily become compulsive and can increase sexual risk taking. That a large proportion of men say alcohol or drugs played a part in their becoming infected with HIV means everyone on the scene and in services needs to think about how we can help men get better sex with less harm."
Dr Hickson added: "Yet again in this survey the gay and bisexual men of England have been incredibly generous with their time and information to help us generate a unique national picture of their HIV prevention and sexual health needs. This kind of research is a community effort that could not be done any other way".
You can talk to someone about HIV, safer sex, or testing by calling THT Direct 0845 802 1221.
Once the embargo lifts, the report will be available at http://sigmaresearch.org.uk/reports/item/report2016b
Free self-sampling HIV test kits are available in many areas of the country. For more information visit http://www.test.hiv
Notes to Editors:
 The Gay Men's Sex Survey 2014 was conducted by Sigma Research at the London School of Hygiene and Tropical Medicine. Research was carried out in 2014 and released today (21.6.16). It was commissioned by Terrence Higgins Trust on behalf of HIV Prevention England, and conducted with the help of over 100 agencies promoting gay and bisexual men's health.
Respondents were aged between 16 to 90 years old. Forty-four per cent of the sample were in a steady relationship. 82% of the sample were white British, 7% were from a black, Asian or ethnic minority background. For more information on the demographic breakdown, please see full report.
 The 2010 figures come from EMIS 2010: The European Men-who-have-Sex-with-Men Internet Survey. The samples are not strictly comparable as EMIS was conducted in 25 languages and the recruitment sites differed.
 Effective HIV treatment reduces the amount of virus in the blood to 'undetectable' levels, meaning it is virtually impossible to pass on the virus.
 PrEP is a treatment that, if taken correctly, is almost 100% effective in preventing HIV. NHS England has recently refused to make it available for people at high risk of HIV, a decision that has been met with outrage from HIV charities and activists.
About Terrence Higgins Trust
Terrence Higgins Trust is the UK's leading HIV and sexual health charity, offering support, information and advice services for those living with HIV and affected by HIV or poor sexual health.
Our vision is a world where people with HIV live healthy lives free from prejudice and discrimination, and good sexual health is a right and reality for all.
About the London School of Hygiene & Tropical Medicine
The London School of Hygiene & Tropical Medicine is a world-leading centre for research and postgraduate education in public and global health, with more than 4,000 students and 1,000 staff working in over 100 countries. The School is one of the highest-rated research institutions in the UK, and among the world's leading schools in public and global health. Our mission is to improve health and health equity in the UK and worldwide; working in partnership to achieve excellence in public and global health research, education and translation of knowledge into policy and practice. http://www.lshtm.ac.uk
- HIV is a virus which attacks the immune system and weakens the body's ability to fight diseases.
- An estimated 103,700 people are living with HIV in the UK and 6,000 people are diagnosed every year. Of these, 17% are undiagnosed and do not know about their HIV infection.
- HIV treatment lowers the amount of virus in the blood to undetectable levels which stops it from damaging the immune system, and means the virus cannot be passed on to other people.
- There is still a great deal of stigma about HIV. Stigma is damaging as it prevents people from getting tested, from accessing treatment and from living a happy and healthy life.
- The most common way HIV is transmitted is through sex without a condom.
- You cannot get HIV through kissing, spitting or sharing a cup, plate or toilet seat.