Getting tested for STIs is straightforward: you can visit a primary care doctor, a sexual health clinic, or a local health department and ask for screening. Most tests involve a urine sample, a blood draw, or a swab, and results typically come back within a few days. The harder part is knowing which tests to ask for and when to get them, since no single test covers every infection.
Where to Get Tested
You have several options, and the right one depends mostly on cost and convenience. A primary care doctor can order any STI test during a routine visit. Planned Parenthood health centers offer testing on a sliding scale based on income, and local health departments often provide free or low-cost screening. Many urgent care clinics also offer basic STI panels.
If cost is a concern, most health insurance plans cover STI testing as preventive care with no copay. If you’re uninsured, community health clinics and health departments will often test you for free or adjust the price based on what you can afford. Call ahead to ask about pricing and whether you need an appointment.
What the Tests Actually Involve
STI testing isn’t one test. It’s a combination of different specimen types depending on which infections you’re screening for.
- Urine sample: Used for chlamydia, gonorrhea, and trichomoniasis. You simply pee in a cup.
- Blood draw: Used for HIV, syphilis, hepatitis B, hepatitis C, and sometimes herpes. A standard blood draw from your arm.
- Swab: Used for chlamydia, gonorrhea, herpes, and HPV. A provider takes a sample from the site of potential infection, which could be the vagina, cervix, penis, urethra, rectum, or throat depending on your sexual history.
For chlamydia and gonorrhea, the test method depends on where the infection might be. A urine sample works for genital infections, but if you’ve had oral or anal sex, your provider may need to swab your throat or rectum separately. When you’re asked about your sexual history, being specific helps ensure the right sites get tested.
Which Tests to Ask For
There’s no universal “full panel” that every clinic runs automatically. If you just say “test me for everything,” you might get a basic screen that misses herpes, hepatitis, or infections at specific body sites. Here’s what to consider based on current screening guidelines.
Everyone: All adults and adolescents ages 13 to 64 should get an HIV test at least once in their lifetime, even without risk factors. This is standard opt-out screening.
Women under 25: Annual screening for chlamydia and gonorrhea if sexually active. Women 25 and older should continue annual screening if they have increased risk factors, such as new or multiple partners.
Men who have sex with men: Annual screening for chlamydia, gonorrhea (at all sites of contact), syphilis, and HIV at minimum. Those with higher risk should test every 3 to 6 months.
People living with HIV: Screening for chlamydia and gonorrhea at the first HIV evaluation and at least annually after that, with more frequent testing based on individual risk.
Anyone at increased risk: Syphilis screening is recommended for adults and adolescents who are at elevated risk, even without symptoms. Hepatitis B and C testing may also be appropriate depending on your history.
Herpes is a notable gap. Most clinics don’t include herpes in routine screening panels because blood tests for herpes have a high rate of false positives in people without symptoms. Testing is typically reserved for people who have active sores or a known exposure.
When to Test After Exposure
Testing too soon after a potential exposure can produce a false negative. Each infection has a “window period,” the time it takes for the infection to become detectable. If you test before the window closes, you could get a negative result despite being infected.
- Chlamydia and gonorrhea: Detectable within 1 week in most cases. Testing at 2 weeks catches nearly all infections.
- HIV (blood test): A lab-based blood test picks up most infections by 2 weeks, with 6 weeks catching almost all. An oral swab takes longer: 1 month catches most, 3 months catches nearly all.
- Syphilis: Blood tests catch most infections by 1 month, with 3 months needed to catch almost all.
- Herpes: Antibody blood tests catch most infections by 1 month, but it can take up to 4 months for near-complete detection.
- Hepatitis B: Detectable at 3 to 6 weeks.
- Hepatitis C: 2 months catches most infections, but full confidence requires waiting 6 months.
- Trichomoniasis: Detectable within 1 week for most, with 1 month for near-complete accuracy.
If you had a specific exposure you’re worried about, a practical approach is to test at 2 weeks for chlamydia and gonorrhea, then again at 6 weeks for HIV (blood test), and at 3 months for syphilis. Your provider can help you map out the right timeline based on what you were exposed to.
How Long Results Take
Most lab-processed tests return results within a few days to a week. Rapid HIV testing is widely available at clinics and gives a result in about 20 minutes. If you get a rapid test, a positive result will need to be confirmed with a follow-up lab test. Your clinic will tell you whether to expect a phone call, an online portal notification, or an in-person follow-up for your results.
What Happens If You Test Positive
Bacterial infections like chlamydia, gonorrhea, and syphilis are curable with antibiotics. Treatment is usually simple: a single dose or a short course of medication. You’ll be advised to avoid sex until treatment is complete and the infection has cleared.
Viral infections like HIV, herpes, and hepatitis are not curable but are manageable with ongoing treatment. An HIV diagnosis today means daily medication that can reduce the virus to undetectable levels, effectively preventing transmission and allowing a normal lifespan. Herpes can be managed with antiviral medication that reduces outbreaks and lowers the chance of passing it to partners.
In 48 states plus Washington, D.C., your provider can give you a prescription or medication to deliver to your sexual partner without that partner needing their own medical visit. This is called expedited partner therapy, and it’s designed to make sure recent partners get treated quickly for bacterial infections like chlamydia and gonorrhea, even if they can’t get to a clinic right away.
Privacy and Confidentiality
STI test results are protected medical information. Your provider cannot share them with your employer, family, or anyone else without your consent. If you’re on a parent’s insurance and worried about an explanation of benefits being mailed home, community health centers and health departments often offer confidential testing outside of insurance. Some clinics also offer anonymous HIV testing, where your name isn’t attached to the result at all.
Certain STIs, including chlamydia, gonorrhea, syphilis, and HIV, are reportable to public health departments by law. This means your provider reports the diagnosis (not always with your name, depending on the state) for disease tracking purposes. Public health staff may contact you to help notify partners, but this process is confidential and designed to protect your privacy.