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Chlamydia test online UK: screening, treatment and where to go

Chlamydia testing and treatment in the UK — free NHS sexual health clinics vs online services, home test kits and when you need in-person care.

Plain, unbranded capsules
Quick answer: Chlamydia testing is free via NHS sexual health clinics and postal kits for under-25s in England. Treatment is a short antibiotic course after confirmed diagnosis — partner treatment is essential. Use dedicated STI services for screening; Sanara signposts for chlamydia.

Chlamydia is the most common bacterial STI in the UK. Most people have no symptoms — which is why screening matters.

Testing options

Route Cost Best for
NHS sexual health clinic Free Anyone, full STI screen
NHS under-25 postal kit (England) Free Asymptomatic screening
Private home test kits £20–£80 Convenience, discreet

If you test positive

  • Antibiotic treatment is highly effective
  • Tell partners — they need treatment too
  • Avoid sex until treatment completes
  • Retest after 3 months if under 25

Sanara’s role

We also compare clinics for thrush, herpes and genital warts. Chlamydia screening should go through NHS sexual health services or your local GUM clinic.

Red flags

Pelvic pain, fever, or testicular pain with STI risk — same-day sexual health clinic, not online delay.

Frequently asked questions

Can I get a chlamydia test online in the UK?

Yes — NHS and private providers offer postal test kits for chlamydia and gonorrhoea. Free NHS tests are available for under-25s in England and via sexual health clinics for all ages.

Can chlamydia be treated online?

Yes — a short course of antibiotics treats chlamydia after confirmed diagnosis. Online clinics can supply after assessment if you have a positive test result. Partner notification is essential.

Is chlamydia testing free on the NHS?

Yes — sexual health clinics and the NHS free under-25s postal scheme in England provide free testing. Results usually take a few days.

Does Sanara treat chlamydia?

Sanara focuses on other sexual health pathways (thrush, herpes, warts). Chlamydia screening and treatment are best accessed via NHS sexual health clinics or dedicated STI services — we signpost rather than replace them.

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