Sexual health and HIV


Our Jefferiss Wing sexual health clinics offer testing, treatment and advice for sexually transmitted infections (STIs). Where possible we will diagnose and treat you at your first visit. However, not all infections can be diagnosed immediately – samples may need to be sent off to our laboratories for analysis. We will contact you immediately to ask you to return for treatment, if your results are positive for an STI.

Our address is Jefferiss Wing, St Mary's Hospital, Praed Street, London W2 1NY.

Get an online sexual health check-up with Sexual Health London

Sexual Health London is a new online sexual health service for people who want a straightforward and convenient test for sexually transmitted infections without needing to visit a clinic. It is available to residents of all London boroughs except Hillingdon, Hounslow, Sutton, Croydon, Greenwich, and Barking and Dagenham.

Just register for SHL and complete the online consultation. If the service is right for you, a free kit will be posted out so you can collect your samples and return them to the lab for testing – you will receive the test results within a few days.

Register for Sexual Health London

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If you have been sexually assaulted, The Havens can give you advice and support.

If you can’t find what you need above and need to be seen today, please come to our sexual health walk-in clinic at the Jefferiss Wing. You can be seen without making an appointment during our opening hours.

Our sexual health walk-in clinic

If you’re experiencing symptoms or you need advice about contraception, you can come to our sexual health walk-in clinic Monday to Friday, with the exception of bank holidays, without booking an appointment. 

Information about changes to the Jefferiss Wing opening times

Patients can register from 08.30 but will still be seen at 09.00 when clinic starts.  


08.30 to 18.15


08.30 to 18.15


11.45 to 18.15


08.30 to 15.15


08.30 to 15.15

Because of changes in sexual health commissioning, there are now reduced times for walk-ins on Thursday evenings. The late evening walk-in service has been replaced by an appointment service, bookable from our website. The ARC@Stowe walk-in clinic has now moved to the Jefferiss Wing: we run a dedicated sexual health clinic for under 25s on Tuesday afternoons, 15.00 to 19.00.

If you would prefer not to wait to be seen and live in an eligible area, you can use Sexual Health London, the online service.

Alternatively you can book an appointment in advance. Appointments for this clinic are released throughout the day.

Concerned about symptoms?



At the Jefferiss Wing we provide a free, confidential contraception service.

Before you come to the Jefferiss Wing, you can use the FPA contraception tool to help you decide which contraception method may be best for you.

Contraceptive pills and injections

We can provide the combined pill (COC), the progesterone-only (POP) pill and contraceptive injections

You can book an appointment here or visit our walk-in clinic if you need one of these forms of contraception. 

Intrauterine devices (IUDs) and intrauterine systems (IUSs)

We can fit and remove intrauterine devices (IUD) and intrauterine systems (IUS), sometimes known as coils.

You can book a pre-assessment for a coil at our walk-in clinic or you can book an appointment here

Before you book an appointment, please watch this video by NHS Lothian Chalmers Sexual Health Centre and read our helpful checklist to make sure that a coil will be suitable for you. If you do not, then we will not be able to fit a coil at your first appointment and you will have to come back to the clinic again. If you have any questions about whether a coil is suitable for you, you can call the clinic on 020 3312 6626 for advice.

You do not need a pre-appointment to have a coil removed - just visit our walk-in clinic.

Contraceptive implants

We can fit and remove contraceptive implants.

You can visit our walk-in clinic  or book an appointment here to have an implant fitted or removed. Please note that if you can’t feel your implant, we will need to refer you to a deep implant removal centre. Your GP or local contraceptive service can also refer you.

Emergency contraception

If you need emergency contraception then you can visit our walk-in clinic or book an appointment

We can: 

  • provide oral emergency contraception, or the ‘morning after pill’ – we can provide this up to five days after you have had unprotected sex.
  • fit emergency coils – we can provide you with an emergency coil up to five days (120 hours) after you have had unprotected sex or or within five days of the earliest time you could have released an egg. If you’re not sure when your last estimated date of egg release was, please visit the walk-in clinic to discuss with a nurse or doctor.

If you are under 25, you can also get contraception at our sexual health clinic for young people.

NHS PrEP trial 

The Jefferiss Wing is taking part in the NHS PrEP IMPACT trial.  We have filled all our spaces for men who have sex with men, and have a limited number of places remaining for other patients at higher risk of HIV.

Please see the IMPACT trial website for more information, and if you would like to find out about joining the trial or to discuss other ways to access PrEP, please walk in to speak to one of the team, or book an appointment in our Guys@Marys clinic.  


Patient information leaflets

Family Planning Association (FPA)

British Association for Sexual Health and HIV (BASHH)

Further online resources

Paddington Square demolition works next to St Marys Hospital

From late June until December 2018, patients and visitors to St Mary’s Hospital may experience some disruption caused by nearby demolition works for the Paddington Square development (on the corner of Praed Street and London Street). We apologise in advance for any impact these neighbouring works may have for our patients and visitors.

While the developer has put in place a range of mitigation and monitoring measures, we anticipate that there may be some disruption caused by additional noise, dust and vibration. If patients and visitors wish to raise any issues about the impact of the demolition works on their care and treatment, then we would ask them to speak to our staff or contact the patient advice and liaison service (PALS).

Take our friends and family test Learn more

Would you recommend our services to your friends and family? Let us know by completing our friends and family test. Your comments will help us to make changes and take immediate action when there’s a problem.


Jefferiss Wing

Staff are always super professional and very friendly. Keep up the good work and thanks to all the staff.

Jefferiss Wing leaflets

I was delighted to find that I could now book an appointment for a sexual health check-up and wasn't disappointed. I was in and out in 25 minutes and my lovely nurse couldn't have been more friendly, helpful and thorough.

Sexual health tube map

The staff at the Jefferiss wing were discreet, friendly and knowledgeable. I'd highly recommend.

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