• Clinical science

Gonorrhea (Gonococcal infection)


Gonorrhea is a sexually transmitted disease caused by the bacterium Neisseria gonorrhoeae that leads to genitourinary tract infections such as urethritis, cervicitis, pelvic inflammatory disease (PID) and epididymitis. The disease primarily affects individuals between 15–24 years of age and has an incubation period of 2–7 days. Gonorrhea is commonly asymptomatic, especially in women, which increases the chance of further spreading and complications. In symptomatic cases, typical clinical symptoms include purulent vaginal or urethral discharge, dysuria, and signs of epdidymitis (e.g., scrotal pain) or PID (e.g., pelvic pain, dyspareunia). Gonorrhea may also cause extragenitourinary manifestations, such as proctitis and pharyngitis. Rarely, disseminated disease may occur, which typically manifests with a triad of arthritis, pustular skin lesions, and tenosynovitis. Diagnostic tests include nucleic acid amplification testing, gram stains, and bacterial cultures from urine or swabs of the genitourinary tract as well as blood and synovial fluid in disseminated infection. Treatment consists of antibiotics, mainly ceftriaxone and azithromycin, but may require different approaches in more severe cases. Without treatment, prolonged infection may lead to complications, such as a hymenal and tubal synechiae that lead to infertility in women.


  • Second most commonly reported infectious disease in the US after chlamydia
  • Incidence: ∼ 820,000 cases per year in the US
  • Age: primarily individuals between 15–24 years of age


Epidemiological data refers to the US, unless otherwise specified.


  • Pathogen
  • Transmission
    • Sexual contact (oral, genital, or anal) with an infected individual
    • Perinatal transmission
  • Risk factors
    • Multiple sexual partners
    • Low socioeconomic status
    • Lack of barrier protection (e.g., condomless sex)
    • Men who have sex with men (MSM)


Clinical features

Gonorrhea can present with a wide variety of symptoms and courses. An asymptomatic course is common, particularly in women, and increases the risk of further spreading and complications!





Sexual partners must be treated simultaneously to avoid reinfections!




We list the most important complications. The selection is not exhaustive.