The Hidden STI Epidemic: Mgen's Silent Spread and Antibiotic Resistance
While chlamydia dominates headlines in UK hotspots like Liverpool, with over 21,000 infected residents, another sexually transmitted infection (STI) is quietly affecting hundreds of thousands. Mycoplasma genitalium, commonly known as Mgen or MG, was discovered in 1981, but reliable testing only became available in 2017. Shockingly, just 15% of Brits have heard of Mgen, according to LloydsPharmacy Online Doctor, despite it impacting approximately 500,000 people—about 2% of the sexually active population in the UK.
What Is Mycoplasma Genitalium?
Mgen is a bacterial infection transmitted through unprotected vaginal or anal sex, though research on oral transmission is ongoing. Dr. Nikki Ramskill, founder of The Female Health Doctor Clinic, explains: 'It affects the urethra, cervix, and sometimes the rectum, behaving similarly to chlamydia but with less awareness and more challenging treatment.' Unlike common STIs, Mgen is not included in standard screening unless persistent symptoms arise, due to concerns about unnecessary antibiotic use exacerbating its resistance.
Symptoms and Risks of Mgen Infection
Mgen is slightly more prevalent in women than men, according to the British Association of Sexual Health, and is often symptomless—affecting 50-70% of women and 80% of men. When symptoms appear one to three weeks post-infection, they include pain during urination, unusual discharge, pelvic discomfort, bleeding after sex, testicular pain, genital itching, and rectal inflammation. Dr. Ramskill notes: 'The tricky part is that these symptoms mimic other STIs, making diagnosis difficult.' Risk factors include unprotected sex and co-infection with other STIs, with over half of Brits engaging in unprotected sex and lacking recent STI tests, as highlighted by Dr. Babak Ashrafi of Superdrug Online Doctor.
Health Complications and Treatment Challenges
If untreated, Mgen can lead to severe complications. In men, it is linked to epididymitis (swelling behind the testicles) and proctitis (rectal inflammation), while in women, it may cause cervicitis and pelvic inflammatory disease (PID), potentially affecting fertility. Treatment typically involves a two-stage antibiotic approach, such as doxycycline followed by azithromycin or moxifloxacin. However, Dr. Ashrafi warns: 'This infection is becoming worryingly resistant to antibiotics, with resistance rates exceeding 90% in some regions, classifying it as a superbug.' Dr. Ramskill reassures that antibiotics remain effective but require careful, targeted use to combat resistance.
Prevention and Awareness Strategies
To avoid Mgen, experts recommend consistent condom use and regular STI testing for sexually active individuals. Public awareness is crucial, as low recognition of Mgen contributes to its spread. With its silent nature and rising antibiotic resistance, Mgen represents a significant public health concern in the UK, underscoring the need for enhanced education and cautious medical practices.



