In the clinical male urethral pus is usually the manifestation of urethritis, which can be divided into common and special infections, that is, sexually transmitted diseases, gonococcal urethritis, referred to as gonorrhea. Male urethra is relatively long and curved, not easy to get urethral infection, often with certain triggers, more often seen in gonorrhea. Mainly seen in sexually active young and middle-aged men, often have a history of unclean sexual intercourse, in the history of unclean sexual intercourse about a week after the appearance of urethral pus, accompanied by tingling in the urethra during urination, burning pain, urinary frequency and so on. Check the purulent secretion, do a smear examination found a large number of leukocytes, in the leukocytes can be found gram-negative diplococci, mostly can be diagnosed, otherwise it may be a common infection, mainly in patients with prepuce, especially children, due to the poor urinary discharge, prepuce scale cleaning difficulties, can not be timely cleaning caused by.