Gonorrhoea

Medically ReviewedOften Asymptomatic

Gonorrhoea is a bacterial STI that can cause discharge and burning urination. It can be detected 2 weeks after exposure with a urine test or swab. Current UK guidance treats it with a single ceftriaxone injection, followed by a test of cure 2 weeks after treatment because antibiotic resistance is increasing.

Gonorrhoea: Key Facts

Often Asymptomatic
Incubation Period
2-14 days
Test Window
2 weeks post-exposure
Results
3 days
Treatment
Single ceftriaxone injection (current UK guidance)
Cure Rate
95% with correct treatment
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Signs & Symptoms

Symptoms of Gonorrhoea

Common Symptoms

  • Discharge (green/yellow)
  • Painful urination
  • Rectal discharge or discomfort (if anal infection)
  • Sore throat (if oral infection)

Symptoms in Men

  • Thick green or yellow discharge from penis
  • Burning sensation when urinating
  • Pain or tenderness in testicles

Symptoms in Women

  • Increased vaginal discharge
  • Pain when urinating
  • Bleeding between periods
  • Lower abdominal pain

It is still widely known by its slang name; our guide explains why gonorrhoea is called the clap and how the test works.

Next step

Book a same-day Gonorrhoea test

Consultation, examination, testing and treatment at our Harley Street clinic. Most results within 24 hours.

How It Spreads

How is Gonorrhoea Transmitted?

  • Vaginal sex
  • Anal sex
  • Oral sex
  • Sharing sex toys
  • From mother to baby during birth
Stay Protected

Prevention

  • Use condoms for vaginal, anal, and oral sex
  • Regular STI testing
  • Limit sexual partners
  • Avoid sex until treatment is complete
If Untreated

Complications if Untreated

  • Pelvic inflammatory disease
  • Infertility in both sexes
  • Increased risk of HIV transmission
  • Spread to blood and joints (disseminated gonococcal infection)
Guides

Gonorrhoea guides

Common Questions

Frequently Asked Questions

Dr Mohammad Bakhtiar
Medically Reviewed

Dr Mohammad Bakhtiar

MD, PhD, LRCP, MSc, DHMSA

Sexual Health

GMC: 4694470•Last reviewed: July 2026

All medical content is reviewed by qualified healthcare professionals registered with the General Medical Council (GMC).

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