HIV in Men
Transmission, Treatment-as-Prevention (U=U), and Effects on Testosterone, Fertility & Sexual Function
Evidence grade 5 of 5, Settled. Read how the Atlas grades evidence.
The written rationale for this grade is still being prepared.
- FDA
- Antiretroviral therapy FDA-approved; U=U endorsed by CDC
Reference only. Not medical advice.
What can go wrong
Untreated HIV progresses to AIDS with life-threatening opportunistic infections and malignancies. The risks discussed here are about misinformation as much as biology: stigma and outdated beliefs about transmission persist despite the strength of U=U evidence. Treatment requires lifelong adherence; intermittent adherence can allow viral rebound and the development of drug-resistant virus. Some older antiretrovirals carried metabolic and bone effects; current first-line regimens are better tolerated. This entry is informational and not a substitute for HIV care, which should be delivered by an HIV specialist.
This is something to take to a clinician. The Atlas can tell you what is known about hiv in men in general. It cannot tell you what is happening in your body, and the difference matters most for exactly the symptoms that bring people to this page.
Human immunodeficiency virus is a retrovirus transmitted through blood, semen, rectal and vaginal fluids, and breast milk. Sexual transmission risk per act is highest with receptive anal intercourse. The defining modern reality is treatment-as-prevention: people on antiretroviral therapy (ART) who achieve and maintain an undetectable plasma viral load do not transmit HIV sexually. This is the Undetectable = Untransmittable (U=U) principle, established by the PARTNER and PARTNER2 studies and the Opposites Attract study, which together observed zero phylogenetically-linked transmissions across many thousands of condomless sex acts when the partner with HIV was virally suppressed. HIV and its treatment also intersect with men's sexual and reproductive health through effects on testosterone, fertility, and erectile function.
On effective treatment, an undetectable viral load means the virus is untransmittable through sex: U=U.
What people take it for
What it is taken for. Approval, where it exists, covers only some of these.
How it works
HIV infects CD4+ T lymphocytes via the CD4 receptor and a co-receptor (CCR5 or CXCR4), integrates into the host genome via reverse transcriptase and integrase, and progressively depletes CD4 cells, producing immunodeficiency if untreated. Modern ART combines agents (commonly an integrase strand transfer inhibitor backbone such as dolutegravir or bictegravir plus two NRTIs) to suppress replication below detectable levels. Suppression reduces genital viral shedding to the point that sexual transmission does not occur. With respect to men's health, HIV and chronic immune activation are associated with hypogonadism, and some antiretrovirals and the syndrome of HIV-associated wasting historically contributed to low testosterone; sexual dysfunction is multifactorial (endocrine, vascular, psychological, and medication effects).
How HIV intersects with testosterone and fertility
Hypogonadism is reported more frequently in men with HIV than in age-matched peers, attributed to chronic inflammation, opportunistic infection of the hypothalamic-pituitary-gonadal axis in advanced disease, wasting, comorbidity, and some medications. In the modern ART era overt wasting is rare, but men with HIV still report higher rates of erectile dysfunction, with contributors including the same cardiovascular risk factors that affect all aging men, depression, and certain drug interactions. Fertility is achievable: with sustained viral suppression and, where indicated, sperm washing, serodifferent couples can conceive with negligible transmission risk, and many guidelines now consider condomless conception reasonable when the partner with HIV is durably undetectable.
What people get wrong
Often saidA person with HIV on treatment can still infect a partner through sex
ActuallyWhen the viral load is durably undetectable, the sexual transmission risk is effectively zero. This is the U=U principle, supported by PARTNER, PARTNER2, and Opposites Attract.
Often saidMen with HIV cannot safely father children
ActuallyWith viral suppression and, where indicated, sperm washing, serodifferent couples conceive with negligible transmission risk.
Who profits, and who pushes back
Nobody is named here yet, because we have not done that work on this entry. Read that as unfinished. Somebody almost certainly sells this, and somebody almost certainly disputes it. Assume both until we have checked.
At a glance
- U=U evidence
- PARTNER, PARTNER2, Opposites Attract: zero linked transmissions when suppressed
- Highest per-act sexual risk
- Receptive anal intercourse
- Goal of ART
- Undetectable viral load (<200 copies/mL, often <50)
- Hypogonadism prevalence (HIV)
- Reported higher than age-matched HIV-negative men
- Fertility
- Sperm washing + ART enable safe conception
What this entry does not yet cover
What follows is unfinished work on our side, not a finding about HIV in Men. A short entry is not a safe entry.
- Cost and market. We have not documented what it sells for or who sells it.
- Supply chain. We have not mapped where it is made.
- Who uses it. We have not documented the user groups.
- What could change. No forward-looking summary yet.
- How it compares. We have not set it against the alternatives.
- Children and teenagers. We have not checked what is known about younger people.
- Where we land. We have not taken a position on this yet.
Sources
The studies below are named and described, but not linked. You cannot open them from here and check our reading against them, which means this page is our summary of the literature rather than a document you can verify. Weigh it accordingly until the links exist.
The studies that matter
Rodger et al. (PARTNER), JAMA2016
No linked HIV transmissions across tens of thousands of condomless sex acts with a virally suppressed partner
Rodger et al. (PARTNER2), Lancet2019
Among gay serodifferent couples, zero phylogenetically-linked transmissions over ~77,000 condomless sex acts with suppression
Bavinton et al. (Opposites Attract), Lancet HIV2018
Zero linked transmissions among gay male serodifferent couples with viral suppression, supporting U=U
HPTN 052, NEJM2011
Early ART reduced sexual transmission to partners by about 96 percent, foundational evidence for treatment-as-prevention