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 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

Specialist sexual health clinics

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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. 

Below are the opening times for the walk-in clinic. Please note that you can register from 08.00 but you will not be seen until after 09.00.


08.00 to 18.15


08.00 to 18.15


11.45 to 18.15


08.00 to 18.15


08.00 to 15.15

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 an appointment here or visit our walk-in clinic. 

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.

Contraceptive implants

We can fit and remove contraceptive implants.

You can book an appointment here or visit our walk-in clinic 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 ARC@Stowe and ARC@Jefferiss.

NHS PrEP trial 

The Jefferiss Wing is taking part in the IMPACT PrEP trial. We have now filled our spaces for men who have sex with men.  For information about other recruiting clinics, please see the IMPACT trial website. If you would like to discuss other ways to access PrEP, please book an appointment at our Guys@Marys clinic.  We still have limited places for other people who are at higher risk of HIV.  If you would like to find out about joining the trial, please walk in to speak to one of the team.