There are many causes of<unk> . This is in part due to the large variety of organisms living in the urinary tract. Ureaplasma urealyticum and Mycoplasma genitalium are some of the culprits.<unk>  is also associated with reactive arthritis, in which the triad of arthritis, conjunctivitis, and<unk>  is seen. Bacterial The most common bacterial cause of<unk>  is Chlamydia trachomatis, but it can also be caused by Ureaplasma urealyticum, Haemophilus vaginalis, Mycoplasma genitalium, Mycoplasma hominis, Neisseria meningitidis, Gardnerella vaginalis, Acinetobacter lwoffii, Acinetobacter calcoaceticus, and E.coli. Viral Herpes simplex virus, Adenovirus, Cytomegalovirus Fungi Candida Albicans Parasitic Parasitic causes include Trichomonas vaginalis (rare).<unk> infectious<unk>  can be caused by mechanical injury (from a urinary catheter or a cystoscope), or by an irritating chemical (antiseptics or some spermicides).
Non-gonococcal urethritis
Creatorrhea
Genitourinary amoebiasis
Blennorrhea
Cystitis glandularis
Logorrhea 
Atrophic vaginitis
Pilonidal disease