How do you diagnose nongonococcal urethritis?
Nongonococcal urethritis is diagnosed by excluding other causes, since inflammation that is not caused by gonorrhea is classified as NGU. A microscopic and/or culture test of the discharge or urine can reveal the infection. Since many people are infected with both NGU and syphilis at the same time, infected patients also should have a test for syphilis before treatment for NGU begins, and three months after treatment ends. Source: The Gale Group.