Sexual health


Our sexual health clinics at the Jefferiss Wing offer testing, treatment and advice for all 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. If we find any infection, we will contact you immediately to ask you to return for treatment.

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

Get an online sexual health check-up

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. Alternatively you can pick up a self-testing kit at our sexual health clinic.

If you live in a borough where Sexual Health London is not available, you can find your local service provider either through SH24 or (NHS Choices).

Register for Sexual Health London

Specialist sexual health clinics

Find a service


I need...


I am...

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. 


12.00 to 18.30


09.00 to 16.00 

ARC clinic: 15.00 to 19.00 for under 25s


12.00 to 18.30


09.00 to 12.00


09.00 to 16.00

Because of changes in sexual health commissioning, there are now reduced times for walk-ins. Please note if you are calling to discuss your results, the phone lines open from 12.00 on a Wednesday. On Mondays, Tuesdays, Thursdays and Fridays, you can call between 10.00 and 17.00. 

Please note that the Jefferiss wing walk-in sexual health clinic may need to close prior to the advertised closing time as a result of a high level of service users. However, if your need is urgent, you will be triaged by the clinical team and assessed as to whether you can be seen on the day. The walk-in clinic may reopen at a later time, if the demand for our service is later reduced and our clinical resources allow. Remember, if you have no symptoms you can collect a self-testing kit from the reception team during our advertised opening hours

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. If you live in a borough where the Sexual Health London service is not available, you can find your local service either through SH24 or (NHS Choices).

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

Concerned about symptoms?



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.

At the Jefferiss Wing we provide emergency contraception and long-acting reversible contraception. If you require contraceptive pills, patches, rings, diaphragms or injections, we advise you attend your local sexual health service. You can find this either through SH24 or (NHS Choices). Alternatively you can visit the Raymede clinic.

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 3405 or 020 3312 3406 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 or be monitored while taking PReP, please walk in to speak to one of the team, or book an appointment in our Guys@Marys clinic.

For patients already enrolled on the trial: please check Guys@Marys to book an appointment online or call to book by phone. If you are running out of tablets and are unable to book an appointment on time, please attend the general walk in clinic, however please note there will be a wait to be seen.