Mycoplasma genitalium, or Mgen, is a specific strain of bacteria that is sexually transmitted. It can cause infection in the cervix (the opening to the uterus in women), inside the penis, or in the rectum. It is becoming a more common STI. In a study, it was found in 16% of sexual health clinic patients from 6 different US cities.

Mgen is often present with no symptoms. If present, symptoms can include discharge from the vagina or penis and a burning sensation when urinating. If your partner has Mgen or any of the symptoms it is important to see a provider at Phoenix Women’s Clinic for testing.

Mgen is transmitted through vaginal or anal sex, even from someone who has no symptoms. There is still research being done on whether it can be transmitted through oral sex.

Having any vaginal or anal sex with someone can put you at risk for Mgen and other STIs. The only way to completely prevent any STIs, including Mgen is to abstain from any sexual activity. Only having sex with a long-term exclusive partner who does not have Mgen or other STIs is the best way to lower the risk of Mgen or other STIs.