Getting an STI test is straightforward: you can visit a clinic, order a home test kit, or go through your regular doctor. Most tests involve nothing more than a urine sample, a blood draw, or a quick swab, and results typically come back within a few days. The specific steps depend on which infections you’re testing for, how recently you were exposed, and what’s most convenient for you.
Where to Get Tested
You have several options, and none of them require a referral or special appointment.
- Your primary care doctor or gynecologist. You can ask for STI testing at any routine visit. Many people don’t realize their annual physical or well-woman exam doesn’t automatically include STI screening unless you or your provider specifically request it.
- Sexual health clinics. Planned Parenthood and local public health departments offer STI testing, often on a walk-in basis. Financial assistance programs can reduce or eliminate the cost based on your income and household size.
- Urgent care centers. Most urgent care locations can order STI tests, though availability of specific tests varies by location.
- At home. The FDA has authorized home STI test kits that don’t require a prescription. The Visby Medical Women’s Sexual Health Test, for example, tests for chlamydia, gonorrhea, and trichomoniasis using a self-collected vaginal swab and a small testing device that sends results to an app. In clinical studies, it correctly identified over 97% of positive samples and over 98% of negative samples across all three infections. Other mail-in kits let you collect a sample at home and send it to a lab.
To find a testing site near you, HIV.gov runs a free locator tool at hiv.gov/locator. You enter your ZIP code and it shows nearby locations offering HIV testing, STI testing, hepatitis C testing, and other services. It also flags sites that provide rapid self-tests and mail-in testing options.
What the Tests Actually Involve
STI testing is not one single test. Different infections require different samples, so what happens during your visit depends on what you’re being screened for.
Urine tests are used for chlamydia, gonorrhea, and trichomoniasis. You pee in a cup. That’s it. No swabs, no needles.
Blood draws are used for HIV, syphilis, hepatitis B, hepatitis C, and sometimes herpes. A small needle draws blood from your arm into a vial, the same as any routine blood test.
Swab tests are used for chlamydia, gonorrhea, HPV, and herpes. A provider uses a soft swab to collect a sample from the site of potential infection. For women, that’s typically the vagina or cervix. For men, it may be the penis or urethra. Depending on your sexual history, your provider may also swab your throat or rectum, since chlamydia and gonorrhea can infect those areas too.
If you’re getting a full panel, expect a combination of urine and blood samples. The whole process usually takes under 15 minutes, not counting the wait.
When to Test After Exposure
Testing too soon after a potential exposure can produce a false negative. Each infection has a window period, the minimum time your body needs to build up enough of the virus or bacteria for a test to detect it. If you test before that window closes, you could get a clean result even though you’re infected.
Here’s how the timing breaks down:
- Chlamydia and gonorrhea: One week catches most infections. Two weeks catches nearly all.
- Syphilis: One month catches most. Three months catches nearly all.
- HIV (blood test using antigen/antibody method): Two weeks catches most. Six weeks catches nearly all.
- HIV (oral cheek swab): One month catches most. Three months catches nearly all.
If you were recently exposed and need peace of mind, testing at the one- or two-week mark for chlamydia and gonorrhea is reasonable. But for HIV and syphilis, you’ll likely need a follow-up test at the three-month mark to be confident in a negative result. Your provider can help you map out the right timeline.
Who Should Get Tested and How Often
The CDC’s screening guidelines lay out specific recommendations based on age, sex, and risk level. These aren’t just suggestions for people who think something is wrong. Many STIs cause no symptoms at all, so routine screening is the only way to catch them early.
Women under 25 who are sexually active should be screened for chlamydia and gonorrhea annually. Women 25 and older should continue screening if they have risk factors like new or multiple partners. All women between 13 and 64 should be screened for HIV at least once. Pregnant women should be tested for syphilis, HIV, and hepatitis B at their first prenatal visit, with repeat testing in the third trimester if risk factors are present.
Men who have sex with men should be screened at least once a year for chlamydia, gonorrhea, syphilis, and HIV. If you’re on PrEP, living with HIV, or you or your partners have multiple partners, screening every three to six months is recommended.
All adults over 18 should be screened for hepatitis C at least once in their lifetime.
Cost and Insurance
Most insurance plans, including Medicaid, cover STI screening with no out-of-pocket cost when it falls under preventive care guidelines. If you’re uninsured, community health centers and Planned Parenthood clinics offer sliding-scale pricing based on income. Some testing may be fully covered through state or federal funding programs. If cost is a concern, calling ahead or dialing Planned Parenthood’s line at 1-800-230-PLAN can help you figure out what you’d owe before you show up.
Home test kits vary in price. Mail-in kits from online services typically range from $50 to $200 depending on how many infections they cover. The FDA-authorized Visby home test is a single-use device, so it’s priced higher than a basic mail-in swab, but it delivers results at home in about 30 minutes rather than requiring you to wait for a lab.
Privacy and Reporting
STI test results are medical records, so they’re protected by the same privacy laws as any other health information. Your results won’t appear on a background check or be shared with your employer.
There is one important distinction: confidential testing means your name is attached to your results in your medical record, while anonymous testing uses a code instead. Anonymous testing is most commonly available for HIV. In both cases, certain STI diagnoses are legally required to be reported to your local health department for public health tracking, but the health department contacts you directly and doesn’t share your information with partners, employers, or anyone else.
What Happens If You Test Positive
Bacterial infections like chlamydia, gonorrhea, and syphilis are curable with antibiotics. Treatment is often a single dose or a short course of pills. You’ll typically be asked to avoid sex for seven days after treatment and to get retested in about three months to confirm the infection is gone.
Viral infections like HIV, herpes, and hepatitis B aren’t curable, but they’re manageable with ongoing treatment. Modern HIV medications, for example, can reduce the virus to undetectable levels, which means it can’t be transmitted to sexual partners.
If you test positive for chlamydia or gonorrhea, your provider may offer to prescribe treatment for your sexual partner as well, even without your partner coming in for an exam. This is called expedited partner therapy, and it’s legal in 48 states plus Washington, D.C. It’s a practical option when your partner can’t easily get to a clinic, and it helps stop the infection from bouncing back and forth between you.