Read condition-specific symptoms and clinical context for Neisseria gonorrhoeae. A human-only bacterium that causes gonorrhoea and very often produces no symptoms at all.
PHAC describes N. gonorrhoeae as a Gram-negative bacterium 0.6 to 1.0 micrometres in diameter which appears kidney bean shaped under the microscope, typically in a diplococcal arrangement with adjacent flattened sides, non-motile, non-spore-forming and possessing fimbriae with an affinity for human cells. It is an obligate human pathogen with no other known natural host. WHO estimated 82 million new gonorrhoea infections worldwide in 2020 among people aged 15 to 49. CDC states that gonorrhea often has no symptoms but can cause serious health problems even without symptoms, and PHAC reports that up to 70% of infected females remain asymptomatic.
CDC lists different symptom sets for women and men, and notes that most women lack symptoms entirely. PHAC gives an incubation period of 2 to 14 days in male urethritis and over 10 days in female cervicitis.
Possible symptoms: Painful or burning sensation when peeing; Increased vaginal discharge; Vaginal bleeding between periods; White, yellow or green discharge from the penis; Painful or swollen testicles.
CDC states that untreated gonorrhea in women may lead to pelvic inflammatory disease with scarring, ectopic pregnancy, infertility and chronic pain, and that untreated infection increases HIV transmission risk. Testing and treatment decisions belong with a clinician; this app does not diagnose anyone.
CDC lists a distinct symptom set for rectal infection. PHAC records proctitis among the presentations alongside conjunctivitis and pharyngitis.
Possible symptoms: Discharge; Anal itching; Soreness; Bleeding; Painful bowel movements.
CDC notes that rectal and throat infections are common and are often missed unless those sites are specifically tested. Site-specific testing is a clinical decision.
CDC states plainly that gonorrhea often has no symptoms, but it can cause serious health problems, even without symptoms.
PHAC reports that up to 70% of infected females remain asymptomatic. There is no symptom list for this state, and none is invented here. Having no symptoms does not mean having no infection: the same untreated infection can still cause pelvic inflammatory disease, which PHAC puts at 10 to 20% of untreated cervical infections, and can still be passed on. This is a silent-infection state rather than harmless carriage of a normal resident, because PHAC describes the organism as an obligate human pathogen.
Because symptoms are an unreliable guide, testing rather than waiting for symptoms is how asymptomatic infection is found. Screening recommendations are clinical guidance and are not reproduced here.
Source check: 2026-09-20. Educational content; independent scientific review remains pending.