What Is Mycoplasma Genitalium?
Mycoplasma Genitalium is a sexually transmitted bacterial infection that can affect the urethra, cervix, and reproductive organs. Often symptomless, it may cause pain during urination, unusual discharge, or pelvic discomfort. Left untreated, it can lead to complications like urethritis or infertility. It’s diagnosed through a PCR test and treated with targeted antibiotics.
Epidemiology
- Demographic patterns: Prevalence peaks in younger adults (20–29 years), and higher rates have been noted among racial/ethnic minorities and those with multiple partners.
- Global burden: Estimates vary by region and testing availability, but metaanalyses suggest M. genitalium is as common as chlamydia—and more frequent than gonorrhea—in many populations.
Symptoms
- Men: Approximately half of infected men develop nongonococcal urethritis, presenting with urethral discharge, burning during urination, or penile discomfort.
- Women: Symptoms can include cervicitis (vaginal discharge, pelvic pain) and may progress to pelvic inflammatory disease (PID), which can lead to infertility, preterm birth, or spontaneous abortion.
- Asymptomatic carriage: Up to 56 % of men and 94 % of women with M. genitalium report no symptoms in some studies—fueling silent spread.
Importance of Early Detection
- Preventing complications: Untreated infections increase the risk of PID, infertility, adverse pregnancy outcomes, and may facilitate acquisition or transmission of HIV.
- Reducing transmission: Because many cases are asymptomatic, identifying and treating carriers interrupts chains of infection that would otherwise go unnoticed.
In Men:
Approximately half of infected men develop nongonococcal urethritis, presenting with:
• Urethral discharge
• Burning during urination
• Penile discomfort
In Women:
Symptoms can include: cervicitis (vaginal discharge, pelvic pain) and may progress to pelvic inflammatory disease (PID), which can lead to infertility, preterm birth, or spontaneous abortion.
Research shows that Mycoplasma genitalium often persists in individuals without causing noticeable symptoms. In some studies, as many as 56% of men and an even higher 94% of women reported no signs of infection. This high rate of asymptomatic carriage means the infection can remain hidden for long periods, making it difficult to detect and diagnose.
Importance of early detection
- Preventing complications: Untreated infections increase the risk of PID, infertility, adverse pregnancy outcomes, and may facilitate acquisition or transmission of HIV.
- Reducing transmission: Because many cases are asymptomatic, identifying and treating carriers interrupts chains of infection that would otherwise go unnoticed.
How Testing Works
Nucleic Acid Amplification Tests (NAATs) or commonly known as PCR tests: The gold standard as PCR test are very accurate > 90% and fast results.
Culture techniques are ineffective because the organism grows very slowly and requires special media.
When to test:
• Due to high rates of asymptomatic carriage, it is important to consider testing when one has multiple partners, inconsistent condom use and also whenever there is a change in partner
• Men with persistent or recurrent urethritis after negative gonorrhea/chlamydia tests.
• Women with cervicitis or PID not explained by other pathogens.
• Sex partners of individuals with confirmed M. genitalium.
