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Non-Gonococcal Urethritis

Medically Reviewed

NGU is inflammation of the urethra caused by infections other than gonorrhoea, most commonly chlamydia or mycoplasma. It causes discharge, burning when urinating, and urethral discomfort. Comprehensive testing identifies the specific cause, and targeted antibiotics provide effective treatment.

Non-Gonococcal Urethritis: Key Facts

Incubation Period
1–5 weeks
Test Window
2 weeks post-exposure
Results
24 hours to 5 working days (depending on tests)
Treatment
Antibiotics (varies by causative organism)
Cure Rate
85–95% depending on cause
Book NGU/NSU Screen – £125

Results within 24 hours • Same-day treatment available

Symptoms of Non-Gonococcal Urethritis

Common Symptoms

  • Urethral discharge
  • Painful urination
  • Urethral discomfort or irritation

Symptoms in Men

  • White or cloudy discharge from the penis
  • Burning or stinging when urinating
  • Tip of the penis feels irritated or sore
  • Frequent need to urinate

How is Non-Gonococcal Urethritis Transmitted?

  • Vaginal sex
  • Anal sex
  • Oral sex
  • Genital-to-genital contact

Prevention

  • Use condoms consistently
  • Regular STI testing
  • Prompt treatment of identified infections
  • Partner notification and treatment

Complications if Untreated

  • Epididymitis (swollen testicle)
  • Reactive arthritis
  • Chronic urethritis if untreated
  • Spread to sexual partners

Frequently Asked Questions

Dr Mohammad Bakhtiar
Medically Reviewed

Dr Mohammad Bakhtiar

MD, PhD, LRCP, MSc, DHMSA

Sexual Health

GMC: 4694470•Last reviewed: January 2026

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

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