A gonorrhea test uses a nucleic acid amplification test (NAAT), which detects the bacterium's DNA in a sample. The standard sample is first-catch urine or a vaginal swab, plus throat and rectal swabs if you've had oral or anal sex. NAAT is highly accurate, and results usually come back within a few days.
| Item | Cases per 100,000 |
|---|---|
| 2021 | 214 |
| 2022 | 194.4 |
| 2023 | 179.5 |
How gonorrhea is tested
Gonorrhea is caused by the bacterium Neisseria gonorrhoeae, which can infect the genitals, rectum, and throat CDC. A lab can't see the organism in your blood the way it screens for HIV or syphilis. It has to sample the actual lining where the bacteria live, so the type of sample matters.
The preferred and recommended test is a NAAT, which amplifies and detects gonococcal genetic material. It's sensitive, usually catching more than nine in ten true infections, and very specific, so a positive result is rarely a false alarm CDC STI Tx Guidelines. Older methods like culture are still used to check antibiotic resistance, but NAAT is the front-line screening tool.
Which sample do you give?
The right specimen depends on where you've had sex, not just on whether you have symptoms:
- For urogenital infection, men and women can give a first-catch urine sample — the first part of the stream, ideally when you haven't urinated for an hour or so. Women can also give a vaginal swab, which performs at least as well.
- For the throat, a pharyngeal swab is used after oral sex.
- For the rectum, a rectal swab is used after receptive anal sex.
- Patient-collected swabs are acceptable. You can often swab your own throat or rectum in a private room, which many people find less awkward than a clinician doing it.
The single biggest testing gap is missing the throat and rectum. A standard urine-only screen will not detect an infection sitting in your throat or rectum, and those sites are frequently the only place gonorrhea is hiding. CDC's guidance is to screen all anatomic sites of sexual exposure, so if you've had oral or anal sex, ask for those swabs by name. Skip that and you may walk out thinking you're clear when you're not.
When to test after exposure
No official CDC or USPSTF page states an exact NAAT window period for gonorrhea, though many sites gloss over this. NAAT detects bacterial DNA rather than your immune response, so it tends to turn positive once enough organisms are present, but the precise timing isn't published as a fixed number of days. If you test very soon after a recent exposure and the result is negative but you still have concerns, a repeat test later is reasonable. For how window periods work across different infections, see our guide on when to test after exposure.
Throat infections complicate timing further. Pharyngeal gonorrhea is usually symptomless and can persist for up to sixteen weeks, which widens the window in which it can be passed on or detected peer-reviewed review. If you have ongoing exposure, periodic screening beats waiting for symptoms that may never come — see gonorrhea symptoms for what to watch for, keeping in mind that many infections cause none.
Who should get screened
The U.S. Preventive Services Task Force gives gonorrhea screening a Grade B recommendation (meaning it's recommended) for USPSTF 2021:
- All sexually active women, including pregnant people, who are 24 or younger.
- Women 25 and older who are at increased risk — for example, new or multiple partners, a partner with an STI, or inconsistent condom use.
- For men, the Task Force found the evidence insufficient (a Grade I statement), meaning it can't weigh the balance of benefits and harms, not that men shouldn't test. Men who have sex with men, in particular, are advised by CDC to screen at all exposed sites regularly.
Where you live affects your baseline risk more than most people realize. Reported gonorrhea has actually been falling nationally — roughly 601,000 cases in 2023, about 180 per 100,000 people, down from a peak of 214 per 100,000 in 2021 CDC AtlasPlus. But rates vary enormously by place: in 2023 they ranged from that national figure up to 853 per 100,000 in Washington, DC, 311 in Alaska, and 288 in Louisiana. Higher local prevalence raises the case for routine screening even without symptoms.
Getting tested: the visit, at-home kits, and cost
At a clinic, a typical visit is quick. You'll give a first-catch urine sample in the restroom and, if you've had oral or anal sex, do a fast throat or rectal swab — many places let you collect those yourself. The most common mistake is assuming the urine cup covers everything; it doesn't. Speak up about every site of exposure or an infection gets missed.
At-home kits work the same way: you collect urine and swabs, mail them to a lab, and get results online. Choose a kit that offers three-site (urine, throat, rectal) collection if you need it, because single-sample kits have the same blind spot as urine-only clinic tests. You can get tested through several routes, and it's worth taking a moment to compare testing providers on price, turnaround, and whether they cover all three sites.
Cost is often a non-issue. Public and sexual-health clinics frequently offer testing free or at low cost, and if you test positive there, the treatment shot is usually given on-site the same day. Plan to retest about three months after treatment, because reinfection from an untreated partner is common.
Reading your results
A NAAT result is reported per site. Because NAAT specificity runs around ninety-nine percent, a positive result almost always reflects a true infection. A negative urine test only clears the urogenital site and says nothing about a throat or rectal infection that wasn't sampled. A clean urine result can coexist with a positive throat result in the same person, which is the practical reason three-site testing matters.
| Sample site | What it detects | When to choose it |
|---|---|---|
| First-catch urine / vaginal swab | Urogenital gonorrhea | Anyone with vaginal or penile sexual contact |
| Throat (pharyngeal) swab | Throat gonorrhea (usually symptomless) | After oral sex |
| Rectal swab | Rectal gonorrhea | After receptive anal sex |
If your test is positive
Gonorrhea is curable. The right antibiotic can clear it, though medicine can't reverse damage already done by an untreated infection. Current first-line treatment is a single ceftriaxone injection, given on-site at most clinics. Read the full regimen, dosing, and what to do about resistant or throat infections on our gonorrhea treatment page.
When to see a clinician
See a clinician promptly if you have symptoms such as unusual discharge, burning with urination, pelvic or testicular pain, or rectal discomfort, and test regardless of symptoms if a partner tested positive or you've had a new partner. Throat infections deserve special follow-up. Even when the bacteria are fully susceptible, throat gonorrhea failed ceftriaxone about 4.6% of the time, so CDC advises a test-of-cure roughly one to two weeks after treatment for pharyngeal infection Clin Infect Dis 2020.
Resistance is the reason clinicians take gonorrhea seriously. The organism has progressively outrun sulfonamides, penicillin, tetracyclines, fluoroquinolones, and cefixime, and azithromycin was dropped after resistance climbed fast, leaving cephalosporins as essentially the last reliably effective class CDC. A ceftriaxone-resistant strain has already spread internationally, and the WHO estimated 82 million new gonorrhea infections globally in 2020 WHO. CDC tracks this through national surveillance programs. None of that should scare you off testing; it's the reason getting tested and treated promptly, and finishing follow-up, matters. For more on resistant infections, see gonorrhea treatment.