Mycoplasma genitalium

The infection: Mycoplasma genitalium, sometimes known as Mgen. Data is limited on its prevalence, but some research has suggested that around 1% to 3% of the global population may carry it.
Symptoms and long-term effects: Its acute symptoms are very similar to chlamydia (discharge, burning while urinating). In women, it can cause an inflamed cervix and pelvic inflammatory disease, a serious condition that can lead infertility if untreated.
How to treat it: Antibiotics, but the emergence of resistant strains have necessitated the need for combination treatment in many cases.