The first thing to know is that Neisseria gonorrhoeae is a pathogenic bacterium transmitted mainly through sexual intercourse, it is a negative coccus, Gram stain is a staining method that is used to stain for the presence of Gram-negative diplococci. Because Neisseria gonorrhoeae is a negative diplococcus, it is easier to find under the microscope after staining, Neisseria gonorrhoeae is usually acute infection under the microscope, forming a small pile of negative cocci in neutrophils, stained pink, which can be seen, so if there is a small pile of red cocci in pairs in the smear, if it is from the urinary system, it is most likely to be a gonorrhoeae infection, but this is only from the morphological identification, can not However, this is only a morphological identification and cannot be 100% sure that it is Neisseria gonorrhoeae. If you want to know whether it is Neisseria gonorrhoeae, you need to culture and identify it to be sure that it is Neisseria gonorrhoeae. You can’t know from the smear, but you just think subjectively and empirically that it may be Neisseria gonorrhoeae, and if the smear is faster and convenient, the result is done faster and the treatment is faster.