A general urine test cannot detect gonorrhea, but a specialist test is required. For example, if a smear of gonococcus is obtained from the discharge, the presence of gonorrhea can be confirmed if Gram(-) diplococcus is found in the smear. Alternatively, a specialist culture of gonococcus may be obtained from urine or secretions, and the diagnosis of gonorrhea may be confirmed if gonococcus is found in the culture. Routine urine tests cannot confirm non-specific infections such as gonococcus, mycoplasma, chlamydia, etc. Specialized tests are required. Therefore, clinically, an experienced doctor needs to examine the patient before deciding on the test to be selected. If gonorrhea is not found or not suspected and a general urine test is used, there can be a missed diagnosis. Since gonorrhea is a sexually transmitted disease, it is important to ask the patient if he or she has had unclean sexual contact during the test, and the incubation period can be as long as 3 months. If there is a history of unclean sexual contact within 3 months and there are gonorrhea-like manifestations, smear and culture tests should be performed to avoid a missed diagnosis.