macrolide-resistant M. genitalium infection is demonstrated Appropriate treatment for these individuals may require further referral to a urologist if symptoms persist after initial treatment. Epidemiology Urethritis is one of the most common sexually transmitted infections found in men. Gonorrhea and chlamydia are the main pathogens causing urethritis. Health organizations break down the rate of urethritis based on its etiology. The estimated global prevalence of gonorrhoea is 0.9% in women and 0.7% in men. An estimated 87 million new infections of gonorrhoea occurred in 2016. Low-income countries have the highest prevalence of gonorrhoea. Gonorrhea is more commonly seen in males than in females and infection rates are higher in adolescents and young adults. The estimated global prevalence of chlamydia, which is the most common cause of non-gonococcal urethritis, is 3.8% in women and 2.7% in men. An estimated 127 million new chlamydia cases occurred in 2016. Upper-middle income countries had the highest prevalence of chlamydia. The rate of chlamydia is around two times higher in females than in males. Rates are also higher among adolescents and young adults. References External links Inflammations Infectious diseases Urethra disorders