Gonorrhoea
Gonorrhoea (Gr. gono = seed; rhein = to flow) is an acute, infectious, sexually transmitted disease of the mucous membranes of the genitourinary tract, eye, rectum and throat. It is caused by the gram-negative, oxidase-positive, encapsulated Diplococcus, Neisseria gonorrhoeae (often called gonococci).

Once inside the body, the pathogens attach to the microvilli of mucosal cells by means of pili and protein II which acts as adhesive. This attachment does not allow bacteria to be washed away by normal vaginal discharges or by the forceful urination. In women, the infection spreads to uterus causing salpingitis, the condition with abdominal pain. Gonorrhoea also leads to pelvic inflammatory disease which involves all organs of reproductive system and lead to infertility condition.

The organisms are transmitted through sexual intercourse, thus, the most effective method for control is public education, diagnosing and treating the asymptomatic patient, condome use, and treating infected persons quickly to prevent any further spread of the disease. Gonorrhoea is successfully treated with almost all classes of antibiotics.