Mycoplasma genitalium (M Gen) is a bacteria that can cause genital infection in men and women. It less commonly causes rectal infection in people who have had anal sex. It is thought that infection in the throat is rare.
It is caught through unprotected sex.
In many people it doesn’t cause any symptoms, but it can cause a burning pain passing urine, urethral discharge in men and vaginal discharge in women. In more serious infections it can cause pain during sex or pelvic pain in women, and testicular pain in men.
The test in men is a urine test and in women the best test is a vaginal swab. You can either be given instructions how to do this yourself, or the Doctor/Nurse can do it for you.
People with a positive test for M Gen are treated with a course of antibiotics.