Sexually transmitted infections (STIs)

A check-up for sexually transmitted infections (STIs) can be done online, but you can contact us if you have noticed something wrong or are worried.

All STIs are treatable, and treatment is available in our clinics.

Photograph of a microscope slide being prepared for examination

Our sexual health services are still here for you, but we have had to change the way we do things because of coronavirus

To ensure social distancing, we are unable to operate a walk-in clinic at the moment. Access to our clinics is by appointment only.

We are able to sort out many issues by phone consultation too, so you can also phone us for advice

Book online  Call us - 020 7683 4103

If you have not noticed anything wrong

People can have sexually transmitted infections (STIs) without noticing anything wrong. Therefore, a sexual health 'MOT' is recommeded if you have a change in sexual partner, or are having sex with more than one person.

A routine check-up includes:

  • A blood test (for HIV and syphilis)
  • A urine test and/or swabs (for chlamydia and gonorrhoea)

If nothing is bothering you, but you would like a check-up for STIs, then London's online service is right for you:

Information about Sexual Health London - the online STI testing service

Visit to register

If you have noticed something wrong

If something is bothering you, a trained doctor or nurse will see you to assess your symptoms.

A healthcare assistant may do your routine tests while you wait.
This helps to speed up your consultation with the doctor or nurse and will not add to your waiting time.

Routine tests include:

  • A blood test (for HIV and syphilis)
  • A urine sample and/or swab (for chlamydia and gonorrhoea)

If you would prefer to see a doctor or nurse of the same gender as you, then please ask at reception. You may have to wait a bit longer. Occasionally this may not be possible.

The doctor or nurse will need to ask questions about what is wrong. This might include questions about your recent sexual partners, and your health in general. Some of the questions are very personal. We therefore use professional interpreters if necessary and not family members or friends.

The doctor or nurse may need to examine you and take extra tests. They will explain anything they need to do. If you do not understand anything during the discussion or examination, please ask.

You can have a chaperone to support you and make you feel comfortable during an examination.

HIV testing is a standard part of a sexual health check-up

It is always better to know your HIV status

HIV is a treatable infection - effective treatment keeps people living with HIV well, and means that HIV cannot be passed on to their sexual partners too. HIV treatment is so good, that there is now no difference in life expectancy between people living with HIV and people who are HIV negative.

We test for HIV using a blood test

Many people believe they have been tested for HIV because they have had blood tests for other things. However, unless you were specifically told that a HIV test was included then it is likely this was not tested. In any case, there is no harm in repeating the test with your check-up.

The HIV blood test has a 'window period' of 45 days

This means if someone acquired HIV less than 45 days before the test, it might not be detected even though they have HIV infection.

If you are having a check-up and have not tested for HIV recently, it is still worth having the test even if you are in the 'window period' - but we may advise you to repeat the test after the 'window period' to be sure.

HIV testing is a standard part of a sexual health check up

  • HIV testing is quick and easy
  • Many people with HIV have not noticed anything wrong
  • HIV is a treatable illness
  • Knowing your status can put your mind at ease