{Reference Type}: Case Reports {Title}: A case report of proctitis associated with Mycoplasma genitalium in a man who has sex with men. {Author}: Isabel Lázaro-Simó A;Esperalba-Esquerra J;Vall-Mayans M; {Journal}: Int J STD AIDS {Volume}: 30 {Issue}: 6 {Year}: 05 2019 {Factor}: 1.456 {DOI}: 10.1177/0956462419825896 {Abstract}: Mycoplasma genitalium is an infection of increasing concern due to its potential to cause sequelae in the reproductive tract and the development of antimicrobial resistance. Its role as a cause of proctitis in people with high-risk sexual behaviour has not been properly defined yet but it seems to be less symptomatic than proctitis caused by Chlamydia trachomatis or Neisseria gonorrhoeae. We present a case of a man who has sex with men with proctitis associated with M. genitalium after excluding other infections known to cause STI proctitis.