Finding out that you have HIV may affect your current and future relationships, but it doesn’t have to mean an end to relationships with HIV negative partners. Relationships where one person is HIV positive and the other is HIV negative are sometimes called ‘serodiscordant’.
Whether you were diagnosed with HIV during a long-term relationship, or you were already diagnosed with HIV when the relationship started, it’s important for your partner to know their status too.
However, recent research has found that if you’re on treatment and have an undetectable viral load you cannot pass on HIV.
You may find it difficult to tell a partner that you have HIV, but not telling a partner may lead to problems later.
This used to be more of an issue when we understood less about the link between viral load and infectiousness. We now know that if you’re taking HIV medication and have an undetectable viral load, you cannot pass on HIV.
It can take up to six months on treatment to become undetectable. That's why we use the phrase effective treatment to mean that someone had been taking their treatment as prescribed for at least six months and has an undetectable viral load.
If you have a detectable viral load, have unprotected sex and don’t tell your partner they may be angry that they weren’t told sooner. If a partner is not told and they subsequently contract HIV as a result of having unprotected sex you could be prosecuted.
It’s important to know the facts about how HIV can be passed on during sex.
Yes. Your viral load is the amount of HIV present in your body fluids. If you’re on effective treatment and have an undetectable viral load you cannot pass on HIV.
The higher someone’s viral load, the more HIV is in their body fluids, meaning a greater risk that the virus will be passed on during unprotected sex.
The aim of HIV treatment is to reduce your viral load to undetectable levels.
This means that you still have HIV, but that it’s below levels laboratory equipment can detect it at, and that you cannot pass it on. Remember, it can take up to six months on treatment to become undetectable.
Protected sex means using a male or female condom during sex if you or your partner have a detectable viral load.
Condoms should be used with water-based lubricant as oil-based lube weakens them.
HIV treatment - used by HIV positive and negative people - is also a form of protection.
However, before deciding to stop using condoms, it’s a good idea to speak to your HIV doctor or nurse to make sure your viral load is undetectable.
It’s also important to remember that if you have sex without a condom other sexually transmitted infections (STIs) can be passed on.
Remember, sex without a condom can also lead to an unplanned pregnancy if other contraception is not being used.
If you have a detectable viral load, the highest HIV risk is if your partner takes the receptive role in anal sex. The risk is lower if you take the receptive role.
If you have a detectable viral load, vaginal sex without a condom is also high risk but less so than anal sex.
The risk is greater for the uninfected woman than for the uninfected man but the risk for both is real.
If you have a detectable viral load, the risk of passing on HIV from having oral sex performed on you is still very low.
The risk from performing oral sex on an HIV negative partner is even lower.
If you're worried about oral sex, using a condom or latex barrier is an option, but if your viral load is undetectable there is no risk.
Deep kissing is safe. Masturbating someone carries no risk if there are no burns, cuts or rashes on the skin of the fingers or hands of the HIV negative person which then come into contact with HIV-infected sexual fluids.
Despite multiple studies in the USA and Europe, there have been no reports of HIV transmission through everyday domestic contact.
Sharing a razor presents a small theoretical risk of transmitting HIV, but sharing razors is never advisable due to the possibility of transmitting bacterial and viral infections including hepatitis B or C.
There is no evidence that sharing kitchen items such as cutlery poses any risk. HIV is not transmitted in saliva.
Regarding cuts and blood spills, an HIV positive person with a detectable viral load and an open wound should not be attended to by someone who has an open wound themselves. Wounds can be washed with soap and warm water. Clean up spilt blood with hot water and bleach (one part bleach, nine parts water), while wearing rubber gloves.
Again, during the everyday activities that are considered ‘risky’, the person with HIV cannot pass on the virus if their viral load is undetectable.
In an emergency, such as when sex is not protected, there is a treatment called Post-exposure prophylaxis (PEP) which can stop a partner getting HIV.
PEP is a month-long course of anti-HIV drugs which can stop HIV taking a hold in someone’s body if they have been exposed to it.
It's best started within 24 hours of unprotected sex and no later than 72 hours afterwards. HIV clinics can give couples PEP to keep at home in case they need it. Alternatively your partner can go to the accident and emergency (A&E) department of a hospital or a sexual health clinic (or your HIV clinic). A doctor will carry out an assessment to find out whether they need PEP based on risk factors such your viral load and the type of sex you had.
Pre-exposure prophylaxis (PrEP) is a course of HIV drugs taken by an HIV negative person to lower the chance of infection. When taken correctly, significantly reduces the chances of becoming HIV positive.
We regularly publish updates about the availability of PrEP in the UK.
You should talk to your partner and agree whether your relationship will be monogamous (no sex outside the relationship) or open (sex with others allowed).
There are risks in not discussing it and assuming that your partner agrees with you. Some people who think they are in a monogamous relationship find out that their partner has had sex with others.
Both monogamous and open relationships can bring benefits and challenges. For example, some couples in monogamous relationships say they enjoy feeling both physically and emotionally committed to only one person. However, they may feel frustrated if they have a higher or lower sex drive than their partner.
Some couples in open relationships say they enjoy the sense of freedom and variety it can bring, but it can also highlight any feelings of jealousy or insecurity within the relationship.
Mutual trust and honest communication are vital in both monogamous and open relationships.
If you both agree to be monogamous it's important that you discuss what would happen if one of you broke this agreement. If either of you feels you must hide the fact that you’ve had sex outside the relationship, it can seriously threaten the relationship as well as both partners’ sexual health.
One advantage of monogamy is that sexually transmitted infections (STIs) such as syphilis, herpes, chlamydia, gonorrhoea and hepatitis C cannot come into the relationship.
If you have sex outside the relationship, condoms make it less likely that you’ll pick up other STIs (and give them to your partner). But some can be passed on despite using condoms and through oral sex.
There is still fear and lack of understanding about HIV, so many HIV positive people know how it hurts to be rejected by partners or potential partners, especially if they turn you down in an insensitive way.
Rejection happens to the best of us. Try not to take it personally - it’s a reflection of their issues, not of you.
Some people tell potential partners their HIV status as soon as possible, so they don’t invest feelings in someone who will later walk away.
You can look at rejections as a way of sorting out the people who were never going to make you happy anyway. The important thing is not to hide away or give up hope!
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how long does it take for one to be affected with HIV after having unprotected sex ? how long does it take for it to be detected ?
I have been with my partner for years. We have recently had a to both have a HIV test done (~ for IVF) . He has come back positive and Me neg!! Obviouly, we have been having unprotected sex since he had been infected without knowing. I have now have to be tested again in 1 month then 3!! how likely is it that I will be positive? :(
I found this article very useful . It helped both me and my partner get a better under standing of the sudden situation we have found ourselves in
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by Anna Peters
Date due for the next review: 10/1/2019
Content Author: Richard Scholey
Current Owner: Kerri Virani
HIV Transmission Risk Persists During the First 6 Months of Antiretroviral Therapy, Mujugira A1, Celum C, Coombs RW, Campbell JD, Ndase P, Ronald A, Were E, Bukusi EA, Mugo N, Kiarie J, Baeten JM; Partners PrEP Study Team
National Center for Biotechnology Information
US National Library of Medicine
2016 Aug 15;72(5):579-84. doi: 10.1097/QAI.0000000000001019
HIV treatment as prevention and HPTN 052, Cohen MS1, McCauley M, Gamble TR
National Center for Boiotechnology Information
US National Library of Medicine
Viral load, NAM, Aidsmap, July 2012
No one with an undetectable viral load, gay or heterosexual transmits HIV in first two years of PARTNER study, Gus Cairns, NAM Aidsmap, 4/3/14
Post exposure prophylaxis, NAM Aidsmap
From ‘HIV and sex’ booklet, Revised by Michael Carter, NAM Aidsmap, 2011
Do condoms always prevent HIV transmission?, NHS Choices, 17/7/15
Do condoms work?, NAM Aidsmap
Household objects, NAM Aidsmap
Masturbation and mutual masturbation, NAM Aidsmap
How transmission occurs, NAM Aidsmap
Body Fluids, NAM Aidsmap
Anal intercourse between men and women, NAM Aidsmap
Position statement on the use of antiretroviral therapy to reduce HIV transmission, January 2013: The British HIV Association (BHIVA) and Expert Advisory Group on AIDS (EAGA), British HIV Association and Expert Advisory Group on AIDS: S Fidler,1 J Anderson,2 Y Azad,3 V Delpech,4 C Evans,5 M Fisher,6 B Gazzard,5 N Gill,4 L Lazarus,4 R Lowbury,7
K Orton,8 B Osoro,9 K Radcliffe,10 B Smith,11 D Churchill,6 K Rogstad12 and G Cairns13
1Imperial College London, London, UK, 2Homerton University Hospital, London, UK, 3National AIDS Trust, London, UK,
4Health Protection Agency, London, UK, 5Chelsea and Westminster Hospital, London, UK, 6Royal Sussex County
Hospital, Brighton, UK, 7Medical Foundation for HIV & Sexual Health (MEDFASH), London, UK, 8Department of
Health, London, UK, 9Positively UK, London, UK, 10University Hospital Birmingham Foundation NHS Trust,
Birmingham, UK, 11Terrence Higgins Trust, London, UK, 12Royal Hallamshire Hospital, Sheffield, UK and 13NAMPublications/Aidsmap.com, London, UK
Hepatitis C - Introduction, NHS Choices, 10/7/15
Hepatitis B - causes, NHS Choices, 2/6/14
Accidents, NAM Aidsmap
Minimising the risk of exposure to blood products and blood-borne viruses, NAM Aidsmap
Cleaning up body fluid spills on pool surfaces, Centers for disease control and infection, 24/4/13
How soon should PEP be used?, NAM Aidsmap
Pre-exposure prophylaxis (PrEP), NAM Aidsmap, 16/9/15
Sexual activities and risk, NHS Choices, 20/11/13
Staph infections – self care at home, US National Library OF Medicine, Medline Plus
Jatin M. Vyas, MD, PhD, Assistant Professor in Medicine, Harvard Medical School; Assistant in Medicine, Division of Infectious Disease, Department of Medicine, Massachusetts General Hospital. Also reviewed by David Zieve, MD, MHA, Bethanne Black, and the A.D.A.M. Editorial team.
Risk from anal sex, NAM aidsmap (2011)
Women more at HIV risk from vaginal sex, NAM aidsmap (2011)
Risk from sexual activities, NAM aidsmap (2011)
Presence and quantity in bodily fluids, NAM aidsmap (2011)
The Swiss Statement, NAM aidsmap (2011)
Studies: homosexual transmission (transmission despite undetectable viral load), NAM aidsmap (2011)
Universal precautions with blood spills, NAM
Starting treatment early to cut infection risk, NAM
Sexual Activity Without Condoms and Risk of HIV Transmission in Serodifferent Couples When the HIV-Positive Partner Is Using Suppressive Antiretroviral Therapy, Journal of the American Medical Association: Alison J. Rodger, MD; Valentina Cambiano, PhD; Tina Bruun, RN; Pietro Vernazza, MD; Simon Collins; Jan van Lunzen, PhD; Giulio Maria Corbelli; Vicente Estrada, MD; Anna Maria Geretti, MD; Apostolos Beloukas, PhD; David Asboe, FRCP; Pompeyo Viciana, MD1; Félix Gutiérrez, MD; Bonaventura Clotet, PhD; Christian Pradier, MD; Jan Gerstoft, MD; Rainer Weber, MD; Katarina Westling, MD; Gilles Wandeler, MD; Jan M. Prins, PhD; Armin Rieger, MD; Marcel Stoeckle, MD; Tim Kümmerle, PhD; Teresa Bini, MD; Adriana Ammassari, MD; Richard Gilson, MD; Ivanka Krznaric, PhD; Matti Ristola, PhD; Robert Zangerle, MD; Pia Handberg, RN; Antonio Antela, PhD; Sris Allan, FRCP; Andrew N. Phillips, PhD; Jens Lundgren, MD, JAMA. 2016;316(2):171-181. doi:10.1001/jama.2016.5148
Viral load, Michael Carter, Greta Hughson, NAM, Aidsmap, March 2014
More confidence on zero risk: still no transmissions seen from people with an undetectable viral load in PARTNER study, Gus Cairns, NAM, Aidsmap, July 2016
Open your eyes to STIs, NHS Choices, Nov 2015
When sex goes wrong, NHS Choices, Nov 2015
What infections can I catch through oral sex?, NHS Choices, May 2015
Risks from oral sex with undetectable viral load?, iBase, July 2016
Pre exposure prophylaxis, Roger Pebody, NAM, Aidsmap, October 2016
Can post exposure prophylaxis (PEP) stop me getting HIV, NHS Choices, September 2015
Various people talk about their experiences of living with HIV.
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