Mycoplasma genitalium (or Mgen)

What is Mycoplasma genitalium?  

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Mycoplasma genitalium (Mgen)   is an STI that can cause infection among people of any gender. Mgen can infect the cervix (opening to the uterus), inside the penis (the urethra), or the rectum.

Testing and Diagnosis

Should I be tested for Mgen?

While individuals with Mgen often do not exhibit symptoms, those who do may experience signs such as:

  • Vaginal discharge,
  • A burning sensation during urination,
  • Penile discharge.

If you observe any of these symptoms, it is important to consult a healthcare provider. Additionally, if your partner has a sexually transmitted infection (STI) or related symptoms, such as an unusual sore, foul-smelling discharge, burning during urination, pain or bleeding after intercourse, or bleeding between menstrual periods, seeking medical advice is recommended. For those who are sexually active, engaging in an open and honest conversation with your healthcare provider about whether you should be tested for Mgen or other STIs is crucial (Centers for Disease Control and Prevention [CDC], n.d.).

Additional Information and Facts

CDC Fact Sheet on Mycoplasma genitalium (Mgen)

Testing and Treatment

Can Mycoplasma genitalium (Mgen) be cured?

Yes, Mgen, If treated with the appropriate antibiotics, Mycoplasma genitalium (Mgen) can be cured. It is crucial to complete the entire course of medication prescribed by your healthcare provider to effectively treat the infection. Do not share your medication with others. It's also important for your sexual partner(s) to consult a healthcare provider for testing and treatment if necessary. Proper adherence to treatment will eliminate the infection and may reduce the risk of future complications. However, while the medication can stop the infection, it cannot reverse any permanent damage already caused by the disease.

Treating some Mgen infections is becoming increasingly challenging due to the rise in drug-resistant strains. If your symptoms persist for more than a few days after completing the treatment, you should revisit your healthcare provider.

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Content source:

Centers for Disease Control and Prevention. (n.d.). Mycoplasma genitalium (Mgen) - About Mycoplasma genitalium. https://www.cdc.gov/mgen/about/index.html

Division of STD Prevention, National Center for HIV/AIDS, Viral Hepatitis, STD, and TB Prevention, Centers for Disease Control and Prevention

Page last updated 8/19/24