Same-Day STD Testing: Where to Get Fast Results

By Richard D. Porter, Patient Advocate Updated October 26, 2026

Quick answer

You can often be tested the same day at an urgent care walk-in clinic, a lab, or a clinic with openings. Same-day results are only possible for some tests: the CDC says a rapid HIV test gives results in 30 minutes or less and an HIV self-test within 20 minutes, while lab tests commonly take a day or more. If you may have been exposed to HIV in the last 72 hours, go to an emergency room or urgent care clinic now and ask about PEP, which must be started within 72 hours. A test can follow.

The test you need

Test: Rapid HIV test (antibody, or antigen/antibody) or HIV self-test
Sample: Finger-stick blood or oral fluid, depending on the test
When: The CDC says a rapid antigen/antibody test can usually detect HIV 18 to 90 days after exposure, and antibody tests 23 to 90 days.
Results: Rapid test: 30 minutes or less. HIV self-test: within 20 minutes (CDC).

How fast do you need to be?

I need to be seen today
I can wait a day or two for lab results
A possible HIV exposure happened in the last 72 hours
I only need an HIV result quickly
I need several infections checked, not just one

The first and fourth fit a walk-in clinic or a rapid test. The second and fifth fit a lab order. The third needs care first, not a test. This is not medical advice or a diagnosis.

When you are worried, waiting days for an answer is hard. Same-day testing exists, but “same day” can mean two different things: being tested today, or getting your result today. They are not the same.

Can you get same-day STD test results?

For a few tests, yes.

Rapid HIV test. The CDC says a rapid antibody test, usually done with blood from a finger-stick or oral fluid, has results in 30 minutes or less, and a rapid antigen/antibody test from a finger-stick takes 30 minutes or less.
HIV self-test. The CDC says you can get results within 20 minutes. It describes this as an antibody test using a swab of your gums.
Some home tests. The FDA says one home test for chlamydia, gonorrhea and trichomoniasis, intended for females with or without symptoms, delivers results in about 30 minutes.

Most lab-based tests take longer. See how long STD results take.

Where can I get tested today?

Several routes offer same-day visits.

Urgent care. AFC Urgent Care says walk-ins are welcome. NextCare says you can walk in without an appointment, and offers same-day testing. NextCare adds that some results are available within minutes while others may take a few days. See urgent care STD testing.
A lab. Quest says same-day appointments are often available for its basic panel, after you buy online. STDCheck says you can visit a testing center on the same day you buy, with no appointment. Results then come from the lab, not on the spot.
A public clinic. The CDC’s Get Tested site (gettested.cdc.gov) can help you find fast, free or low-cost, confidential testing near you. It is worth calling ahead about walk-in hours.

Which tests can I get fast results for?

Quick results are mostly for HIV and a few other tests. Everything else usually goes to a lab.

Rapid HIV tests and self-tests: minutes.
Some FDA-authorized home tests: the FDA says about 30 minutes for the home test described above.
Lab tests: STDCheck says most results come within 1 to 2 business days after the sample is collected, and some take longer. For HIV RNA, its page says 2 to 4 business days.
Mailed self-collection kits: the CDC says this can take a few days.

To check several infections at once, expect to wait on a lab.

What should I ask about same-day testing?

Before you go, a short call helps:

Do you test for the infections I am worried about, and from which body sites?
Will I get results today, or does the sample go to a lab? If it goes to a lab, how long does it take and how will I be told?
What does it cost, and do you take my insurance?
If a result is positive, who do I talk to, and can I be treated at the same visit?

Is a fast test as reliable?

It can be, if it is done at the right time. A fast result does not make the test work earlier. The CDC’s HIV windows show why: nucleic acid tests can usually detect HIV 10 to 33 days after exposure, lab antigen/antibody tests 18 to 45 days, rapid antigen/antibody tests 18 to 90 days, and antibody tests 23 to 90 days.

A negative result before the window has passed may not be conclusive. The CDC says to get tested again after the window period for the test you took. A positive result on an HIV antibody test needs a follow-up test to confirm. The FDA names false positives and false negatives as the main risk for home tests.

Use the window-period calculator to pick a date when a result will be reliable.

What if I need an answer today because of a possible exposure?

If this might be HIV and it was in the last 72 hours, a same-day test is not the first thing to do. HIV.gov says PEP must be started within 72 hours of a possible exposure or it won’t work, and to contact a health care provider immediately or go to an emergency room or urgent care clinic right away. It says PEP is for emergencies.

Get that care first. A test can follow once a clinician has seen you.

Get care now if

You may have been exposed to HIV in the last 72 hours: go to an emergency room or urgent care clinic right away and ask about PEP
You have severe pain in your belly, pelvis or testicles, or a fever with genital symptoms
You are pregnant and think you may have been exposed: tell your prenatal clinician now
You were sexually assaulted: go to an emergency room

Call 911 for a medical emergency. Otherwise, an urgent care clinic, sexual health clinic or your doctor can see you.

When to test

Within 72 hours of a possible HIV exposureGo to an emergency room or urgent care clinic right away and ask about PEP. A same-day test is not a substitute for PEP.
After the window periodA quick test is only as reliable as its timing. The CDC says nucleic acid tests can usually detect HIV 10 to 33 days after exposure, lab antigen/antibody tests 18 to 45 days, rapid antigen/antibody tests 18 to 90 days, and antibody tests 23 to 90 days.
After a test taken before the window period endsPlan a repeat test. The CDC says to get tested again after the window period for the test you took.
After any positive rapid or home resultGet lab confirmation. The CDC says a positive HIV self-test result needs a lab test to confirm.

Common questions

Can I get same-day STD test results?

For some tests, yes. The CDC says rapid HIV tests give results in 30 minutes or less, and the FDA says one authorized home test for chlamydia, gonorrhea and trichomoniasis delivers results in about 30 minutes. For most lab tests you should expect a day or more.

How long do lab results take?

It depends on the lab and the test. STDCheck says most results are available within 1 to 2 business days after the sample is collected, and some tests take longer. The CDC says a mailed self-collection kit can take a few days.

Is a same-day test as reliable?

A fast result can be accurate, but it is only as reliable as its timing. The FDA says home tests carry a risk of false positive and false negative results. A positive rapid or self-test needs confirming, and a negative taken early may need repeating.

Can I get tested the same day I order online?

Sometimes. STDCheck says you can visit a testing center the same day you buy, with no appointment, and Quest says same-day appointments are often available for its basic panel. You still wait for lab results afterward.

Next: Rapid HIV test (antibody, or antigen/antibody) or HIV self-test.

Finger-stick blood or oral fluid, depending on the test. The CDC says a rapid antigen/antibody test can usually detect HIV 18 to 90 days after exposure, and antibody tests 23 to 90 days.

Sources

This guide is general information written by a patient advocate using public health sources. It is not a diagnosis. Only a clinician or a lab test can tell you whether you have an infection. Read how we write and check our guides.