The absence of urethral discharge can not exclude gonorrhea and nongonococcal urethritis, need to be based on the patient’s other symptoms, and related examination, comprehensive diagnosis. Gonorrhea is Neisseria gonorrhoeae infection caused by purulent infection of the genitourinary tract, often frequent urination, urinary urgency, painful urination, abnormal discharge from the urethra or vagina and other symptoms, the condition is mild, in the urethra may not have obvious symptoms of abnormal discharge, you can take out the secretion from the vaginal opening, cervical opening, or other affected areas, to do the gonococcal culture, positive, can be diagnosed. Non-gonococcal urethritis is a urethritis caused by infection with pathogens other than gonococcus, which is mainly transmitted through sexual contact, and manifests itself in symptoms such as painful urination, increased urethral secretion, difficulty in urination, and increased cervical secretion in female patients, etc. In some patients, there is no obvious secretion at the urethral opening, and it can be diagnosed by doing the direct fluorescent antibody test, polymerase chain reaction, and other related tests. Usually can not be based on the urethral discharge to determine whether there is gonorrhea or non-gonococcal urethritis, it is recommended that if the patient has abnormal symptoms of discomfort in the urethral orifice, go to a regular hospital in a timely manner, combined with the relevant examination, a clear diagnosis, and active treatment.