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Symptoms of HIV

Signs and symptoms of HIV

People with HIV may have a short illness soon after getting the virus, but can then feel well for a long time. Most people will only notice further symptoms of HIV after a few years.

What is a ‘seroconversion illness’?

Up to six weeks after getting HIV many people experience a short one or two week illness called a ‘seroconversion illness’.

It is a sign that their immune system is reacting to the presence of the virus in their body.

‘Seroconversion’ is also the point at which the body produces antibodies to HIV. Once seroconversion has happened, an HIV test will detect antibodies and give a ‘positive’ result.

This ‘seroconversion illness’ happens to most (but not all) recently infected people. It can be severe enough to put someone in hospital or so mild that it is mistaken for something like flu (although a blocked or runny nose is not usually a symptom).

The most common symptoms of seroconversion are:

  • sore throat
  • fever
  • rash over the body

These could be signs of a harmless infection but two or more of these together within six weeks of unprotected sex could be a sign that you now have HIV.

Some people with HIV never get a ‘seroconversion’ illness. So whether you notice symptoms or not, if you have taken a risk you should seriously consider testing and definitely use condoms until you test.

If you do have HIV, your body fluids (blood, semen and vaginal or anal secretions) are highly infectious during the early weeks and months after you first became infected.

Why does it take so long to get symptoms of later HIV-related illnesses?

People with HIV usually look or feel well for a number of years. They are not likely to feel ill or notice any symptoms during the first few years of their infection.

All the same, over time the virus attacks their body, causing a drop in their CD4 cells (or T cells - blood cells that play a role in your body fighting off infections).

It can take many years for the level of CD4 cells to fall to a point at which illnesses are noticed.

What are the symptoms of later HIV-related illnesses?

As HIV weakens someone’s immune system and their CD4 count drops, they may experience signs of other illnesses:

  • weight loss
  • night sweats
  • thrush in the mouth
  • an increase in herpes or ‘cold sore’ outbreaks
  • swollen glands in the groin, neck or armpit
  • long lasting diarrhoea
  • tiredness

But remember, people who don’t have HIV can also get any of these; they can be the signs of other illnesses.

A weakened immune system may leave someone more open to serious infections such as:

What can HIV treatment do?

If started soon enough, HIV treatment can prevent or clear up these infections.

Thanks to effective treatment, many people with HIV will never get serious HIV-related illnesses. It’s increasingly likely that people diagnosed early and who start treatment before HIV damages their immune system will live as long as people who don’t have HIV.

What should I do if I think I could have got HIV?

Only an HIV test can tell you whether you have HIV.

Try not to guess based on any symptoms you may or may not have. Try not to guess based on the HIV status of a person you have had sex with.

If you test, tell whoever tests you if you’ve recently taken risks or had symptoms similar to seroconversion illness, as this will affect the kind of HIV test you should have.

To be on the safe side, and until you know your test result, use condoms to protect anyone you have sex with.

Testing for HIV ››

‹‹ Back to: How HIV is transmitted



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  • Hi I'm looking for the forum on hear and come across symptoms of hiv I'm just wondering if athletes foot is a symptom of hiv and if so at what stage would you get it .

    Posted 09:53 Tue 03 Jun 2014
  • Hi Braveheart. You can call THT Direct to get more detailed information about HIV symptoms. You can call THT Direct between 10am and 8pm from Monday to Friday on 0808 802 1221.

    Posted 12:06 Mon 09 Jun 2014
  • This comment is awaiting moderation

    Posted 06:58 Wed 05 Apr 2017
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    Posted 22:48 Tue 25 Apr 2017

The Information Standard: Certified member

This article was last reviewed on 24/8/2015 by T. Kelaart

Date due for the next review: 23/8/2018

Content Author: R. Scholey

Current Owner: Health promotion

More information:

NAM. Primary infection   

NAT. Primary HIV Infection: a policy report from the National AIDS Trust, July 2008 (2008)

NAM. Symptoms of HIV   

NAM. Many patients diagnosed with HIV today will have normal life expectancies, European studies find. (2010)  

NHS Choices. HIV and AIDS  2014

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The easiest and most effective precaution to take against most STIs is using a condom.