Pus in the urethra may be caused by gonococcal urethritis, glans infection or secondary infection after trauma. 1. Gonococcal urethritis: Frequent high-risk sexual behavior may be infected with gonococcus bacteria, triggering gonococcal urethritis. This disease will lead to pus and pain in the urethral area, causing pus to flow from the urethra. 2. glansitis: glans can be induced when the glans is stimulated by physical and chemical factors or infected by microorganisms. When the patient allows the condition to develop, the inflammation will cause irritation to the mucous membrane of the urethral opening, which can cause the formation of pus in severe cases, inducing pus in the urethral opening. 3. Trauma secondary infection: some patients urethral area was traumatized, if not treated in time, there may be bacterial growth induced urethral pus. Urethral pus may also be caused by other reasons, such as ureteral stones, gonorrhea, etc., should go to the hospital in time to clarify the cause of the disease, and choose the appropriate method of treatment.