Mycoplasma Genitalium

Medically ReviewedOften Asymptomatic

Mycoplasma genitalium is a bacterial STI increasingly recognised as a cause of urethritis and cervicitis. It requires specific testing (not included in standard STI screens) and targeted antibiotic treatment. Resistance-guided therapy is now recommended to ensure effective treatment.

Mycoplasma Genitalium: Key Facts

Often Asymptomatic
Incubation Period
1–5 weeks
Test Window
2 weeks post-exposure
Results
3–5 working days
Treatment
Targeted antibiotics (resistance-guided therapy)
Cure Rate
90–95% with resistance-guided treatment
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Results within 24 hours • Same-day treatment available

Signs & Symptoms

Symptoms of Mycoplasma Genitalium

Common Symptoms

  • Often no symptoms (many infections are asymptomatic)
  • Urethritis symptoms
  • Discomfort when urinating

Symptoms in Men

  • Discharge from the penis
  • Burning or stinging when urinating
  • Urethral irritation

Symptoms in Women

  • Unusual vaginal discharge
  • Pain during sex
  • Bleeding after sex or between periods
  • Lower abdominal pain
Next step

Book a same-day Mycoplasma Genitalium test

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

How It Spreads

How is Mycoplasma Genitalium Transmitted?

  • Vaginal sex
  • Anal sex
  • Possibly oral sex (less common)
  • Genital-to-genital contact
Stay Protected

Prevention

  • Use condoms consistently
  • Specific testing if symptoms persist after chlamydia/gonorrhoea treatment
  • Partner notification and treatment
  • Limit number of sexual partners
If Untreated

Complications if Untreated

  • Pelvic inflammatory disease (PID) in women
  • Infertility
  • Epididymitis in men
  • Increased risk of preterm birth
  • Antibiotic resistance
Common Questions

Frequently Asked Questions

Dr Mohammad Bakhtiar
Medically Reviewed

Dr Mohammad Bakhtiar

MD, PhD, LRCP, MSc, DHMSA

Sexual Health

GMC: 4694470Last reviewed: July 2026

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

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Consultation, examination, testing and treatment at our Harley Street clinic. Same-day appointments and walk-ins welcome.

Mon-Fri 9am-6pm, Sat-Sun 10am-2pm. Walk-ins welcome.