What percentage of HIV patients are straight? Understanding HIV among heterosexual people

About 46% to 49% of new HIV diagnoses in England are among heterosexual individuals, while globally, women and girls comprised 53% of people living with HIV in 2024 according to UNAIDS. In the US, heterosexual contact accounted for 22% of new HIV diagnoses in 2022. Men reporting heterosexual contact made up 6% of new infections in 2022, while women reporting heterosexual contact accounted for 15% of new infections in the same year. HIV infections from heterosexual contact decreased 11% from 2018 to 2022, and overall HIV infections decreased 12% from 2018 to 2022.

The myth that HIV is mostly a “gay disease” simply doesn’t hold up. In the UK, Europe, and worldwide, large numbers of people diagnosed with HIV identify as straight and acquired HIV through heterosexual contact. New infections among young people aged 13-24 decreased 30% by 2022, showing progress, but heterosexual transmission remains a major pathway globally.

Being diagnosed late means your immune system is already significantly weakened by the time HIV is found, often measured using a CD4 cell count threshold in UK data. In England in 2024, around 42% of newly diagnosed people were diagnosed late.

Why does this happen?

• Many straight people still believe HIV only affects certain “risk groups.”
• GPs and clinicians may not think to offer HIV testing for non-specific symptoms, particularly in older age groups.
• Heterosexual and bisexual women and heterosexual men may not be offered routine tests after unprotected heterosexual sex, especially outside a sexual health service.

The HIV epidemic doesn’t affect all heterosexual people equally. HIV disproportionately affects specific racial and ethnic minority communities among heterosexual populations in Western countries.

In the UK, Black African men and women are disproportionately affected, comprising 31% of those accessing HIV care and 32% of new diagnoses, despite being only about 2% of the population.

Barriers to testing include immigration concerns, language barriers, and HIV stigma within communities. Wider inequalities, including poverty, housing insecurity, and limited access to healthcare, also play a role.

Statistics often focus on transmission routes rather than identity. Men who have sex with men (MSM), people reporting heterosexual contact, and people who inject drugs are the main categories. People who inject drugs accounted for a smaller but important share. In 2022, MSM accounted for 67% of estimated new HIV infections in the US, while heterosexual contact accounted for 22% of new HIV infections.

HIV risk depends more on behaviours-condom use, viral load, number of partners, presence of other STIs-than on identity labels. Bisexual men may be grouped within MSM statistics even if they also have sex with women, and bisexual women may face different risks. Straight, gay, lesbian, bisexual, and queer people can all be at risk of acquiring HIV. Assumptions about who is “high risk” or “low risk” can lead to missed diagnoses.

To understand more about how HIV affects the body, read “What does HIV do to the body?“. For information on how symptoms may present differently, see “Are HIV symptoms in women different than in men?“

Age is another crucial factor. Around 68% of new HIV diagnoses occur in people aged 25–49. People aged 50 and over now represent more than half of those in HIV care, reflecting longer survival. Under-25s account for around 10% of new diagnoses.

HIV testing among heterosexual men in sexual health clinics remains below pre-COVID levels. Opt-out testing in emergency departments is starting to find more undiagnosed people, including older heterosexual men and women who might never attend a sexual health clinic.

HIV is tested in approximately 48% of Better2Know bookings. Our data can’t show sexual orientation, but demand is strong across every age group, supporting the message that HIV testing is relevant for everyone. Whatever your age, it’s never too early or too late to get tested.

In the UK, nearly all people diagnosed with HIV and engaged in care are receiving treatment. Almost 99% of people diagnosed HIV in England are on antiretroviral therapy, and around 98–99% of those on treatment have achieved an undetectable viral load. This means the virus is virally suppressed to the point where it can’t be measured, and the U=U (Undetectable = Untransmittable) message applies: people with an undetectable viral load do not transmit HIV sexually.

Modern HIV medicine, including combination antiretroviral therapy, stops HIV from replicating. The immune system recovers and stays strong. Life expectancy for someone who’s diagnosed early and takes treatment as prescribed is now very close to that of someone without HIV. People can prevent HIV transmission to partners and live long, healthy lives.

If HIV isn’t treated, it progressively damages the body. Read more in “What does HIV do to the body?“. If you’ve recently been diagnosed, shock and worry are normal. Better2Know’s blog on how it feels to be diagnosed with HIV can help you understand what to expect and where to find support.

Whether you’re gay, bi, straight, or don’t use labels at all, an early HIV diagnosis plus good HIV care means you can plan for the long term with confidence.

Can a straight man or woman really get HIV from just one encounter?

Yes. HIV can be passed on during a single episode of unprotected sex with someone who has a detectable viral load, regardless of sexual orientation. The risk per act depends on condom use, viral load, presence of other STIs, and the type of sex. While the average risk from one episode of vaginal sex is lower than from anal sex, it’s never zero without protection or access to PrEP.

Are HIV symptoms in heterosexual people different from those in gay or bisexual people?

No. HIV symptoms are caused by the virus and your immune system’s response, not by sexual orientation. Some people experience a flu-like illness a few weeks after infection; others notice nothing. The only reliable way to know is to get tested. Read more about how symptoms may differ between men and women.

Can you get HIV from oral sex if you’re straight?

The risk of new HIV transmissions from oral sex is much lower than from vaginal or anal sex, but it isn’t absolutely zero. Factors like mouth ulcers, gum disease, and ejaculation in the mouth can increase the risk. For more detail, see “Can you get HIV from oral sex?”

How often should heterosexual people test for HIV?

If you’ve had unprotected sex with a new partner, test for HIV and other STIs. If you change partners frequently, yearly testing or more is sensible. If you’re in a long-term monogamous relationship and both tested negative, your need for ongoing testing is lower unless something changes. There’s no wrong time to test. Better2Know offers different HIV testing options, including early-detection tests and an STI postal testing service, so you can choose what works best.

HIV doesn’t discriminate by sexual orientation. In the UK, heterosexual individuals make up roughly 49% of new HIV diagnoses, and heterosexual men and women, especially older adults and Black African communities, are more likely to be diagnosed late because they don’t see themselves as at risk. HIV cases among heterosexual people are not rare and deserve attention.

Modern HIV care in the UK is excellent. Almost everyone diagnosed and engaged in care is on treatment, most have an undetectable viral load, and they can live long, healthy lives. Early diagnosis is the key.