Microbiology Non gonococcal urethritis is mostly caused by: A Chlamydia and streptococcus B Chlamydia and ureaplasma C Chlamydia and treponema D Chlamydia and mycoplasma 💡 Explanation Non gonococcal urethritis is mostly caused by: ✓ Correct Answer: B. Chlamydia and ureaplasma