What causes nonspecific urethritis?
Nonspecific urethritis may be caused by germs such as bacteria, viruses, or fungi, including chlamydia, mycoplasma and herpes simplex virus. There may be more than one germ causing your condition at the same time. In some cases, the exact germ causing the infection is unknown. You may get this infection by having unprotected sex with a person who has an infection. Sex is unprotected when a condom is not used. Bath soaps, spermicides, and vaginal chemicals from your sexual partner may also cause urethritis. These may get into your urethra, causing irritation and swelling. Injuries from objects or accidents, and medical conditions such as Stevens-Johnson syndrome may also cause urethritis.
