Northwick Park Hospital

Sexual Health (GUM) Clinic

5th floor, Northwick Park Hospital, Watford Road, Harrow, HA1 3UJ

Services provided

Sexual Health

  • Sexual health information and advice 
  • Free condoms and lubricant
  • Self-testing for chlamydia for under 25s
  • Full testing and treatment for STIs
  • Treatment for HIV
  • Treatment for infections
  • Specialist services for LGBTQ+ populations
  • Hepatitis B vaccination
  • HPV vaccination for MSM (men who have sex with men)
  • Post exposure prophylaxis after sexual exposure (PEPSE) to prevent HIV


  • Male and female condoms
  • Emergency contraception
  • Oral contraception (combined and progestogen-only pills)
  • Injectable contraception
  • Implants
  • IUDs and IUSs (intra-uterine contraception)
  • Diaphragm
  • Pregnancy testing

Implants, IUDs and IUSs

There are dedicated clinics, by appointment, for contraceptive implant removals, IUD and IUS insertions and problems, natural family planning and contraceptive advice for women with medical problems.

Appointments, results and enquiries

To book an appointment or for enquiries please ring 020 8869 3142. For results, please call between 9am and 10am, Monday to Friday or email


Opening times

Northwick Park Hospital


9.30am to 12noon



2pm to 4pm



3pm to 5.30pm



5.30pm to 6pm



9.30am to 12noon



3pm to 5pm

Walk-in. Aged 25 years and under only


9.30am to 12noon



2pm to 4pm



9.30pm to 12noon



Doors open 30 minutes before the start of the clinic and appointment slots are issued on a first-come, first-served basis. Please attend early to ensure you are seen.

Please tell reception if you have an urgent problem or are a teenager 16 years of age or under, and you will be seen as a priority at all times.

Emergency contraception and repeat routine contraception (e.g the pill, depot injections) are available during all clinic sessions. More complex contraception (e.g. IUDs, IUS, implants) are available during some sessions, so please enquire at reception.

We will ring you with any positive results (usually within 2 working days) or will text you if your results are negative. Alternatively, you may like to choose the new online STI test kit (below).


Order a free STI test kit online (Brent, Ealing and Harrow residents)

Sexual Health London is a new online sexual health service that is available to residents of Brent, Ealing and Harrow who want a straightforward and convenient test for sexually transmitted infections without needing to visit a clinic.

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 – the test results will be with you in just a few days.


How to find us

Sexual Health (GUM) Clinic, 5th floor , Northwick Park Hospital, Watford Road, Harrow, HA1 3UJ



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