Most common cause of Non-gonococcal urethritis is
The most common cause of non-gonococcal urethritis is C.trachomatis. Other common organisms are ureaplasma ureolyticum and Mycoplasma hominis. Ref: Ananthanarayan and Paniker&;s Textbook of Microbiology, 9th edition; pg no: 234
Meningococci
Escherichia coli
Chlamydia trachomatis
Mycoplasma
miscellaneous