Final answer:
Gonococcal urethritis is caused by Neisseria gonorrhoeae and can result in inflammation and purulent discharge. Nongonococcal urethritis (NGU) is not caused by N. gonorrhoeae and may be asymptomatic or present milder symptoms, often treated with tetracyclines or azithromycin.
Step-by-step explanation:
Gonococcal urethritis, caused by Neisseria gonorrhoeae, is a type of sexually transmitted infection that results in inflammation of the urethra and can cause symptoms such as purulent discharge and dysuria. It is a common STI, particularly among individuals aged 15 to 24. Neisseria gonorrhoeae has specific adaptations, like fimbriae and lipooligosaccharide endotoxin, which contribute to its pathogenicity. On the other hand, nongonococcal urethritis (NGU) is inflammation of the urethra not caused by N. gonorrhoeae. It may be asymptomatic, particularly in women, or present with milder symptoms in men. Pathogens causing NGU include Chlamydia trachomatis, Mycoplasma genitalium, and Ureaplasma urealyticum. While both conditions can cause similar symptoms, their treatment differs; NGU is typically treated with tetracyclines or azithromycin, whereas gonococcal urethritis might require a different approach due to potential co-infections and antibiotic resistance.
Treatments are specifically targeted based on the causative agent, so it is crucial to differentiate between gonococcal and nongonococcal urethritis for effective management of the infection.