Urethritis
Urethritis is the inflammation of the urethra (the tube that carries urine from the bladder to the outside of the body), and can be caused by infection or by other conditions. It is sometimes a symptom of sexually transmitted infections, particularly chlamydia (chlamydial urethritis) or gonorrhea (gonococcal urethritis), especially in males. People with urethritis may or may not experience symptoms.
Medical tests can determine the cause of urethritis and determine appropriate treatment. When laboratory testing eliminates chlamydia and gonorrhea as causes, the diagnosis is nongonococcal urethritis, or NGU. NGU can be treated with antibiotics. Sexual partners may also require treatment to prevent reinfection.