The diagnosis of gonorrhea is based on medical history, such as a history of high-risk sexual contact, a smear examination of secretions, such as urethral and cervical secretions for examination, and a Gram stain to look for gonococci. If the gonococcus is found to be positive in the secretion, the diagnosis can be confirmed immediately, which is the gold standard for clinical diagnosis. Once the diagnosis is confirmed, active treatment is required, and the preferred drug is penicillin. After treatment, clinical tests must be done to see if gonococcus can be found in the secretion, if not, it means that the clinical cure has been achieved.