This page is general health information, not medical advice. It cannot tell you whether you have an infection. A clinician can, and the testing options on this site are a good place to start.

Waiting for answers is hard. If you want to get tested in Columbia and hear back quickly, it helps to know which tests can be read the same day and which cannot.

This guide walks you through the process, step by step. It covers what to bring, how to pick a clinic, what to ask, and how long different STD test results usually take.

The short version: some HIV tests can give a result during your visit. Many other STI tests need a lab, so results often arrive in a few days.

What "same-day" testing really means

People use "same-day STD testing" to mean two different things. Knowing the difference saves frustration.

Same-day visit: You can be seen and have your sample collected today. Results may still come later.
Same-day result: The test is read at the clinic, and you learn the result before you leave.

A clinic can offer a same-day visit for almost any STI test. A same-day result is only possible for certain rapid tests.

Which tests can give same-day results, and which usually cannot

Tests that can be read during your visit

Rapid HIV tests are the main example. The CDC explains that rapid HIV tests use a finger stick or an oral swab and can return a result in about 30 minutes or less. Several Columbia clinics list rapid HIV testing, and they are named below.

Some places also offer a rapid syphilis test. The clinic listings we reviewed for Columbia do not say which sites have one, so ask when you call.

Tests that usually take longer

Chlamydia and gonorrhea are usually checked with a nucleic acid amplification test, called an NAAT. The CDC STI Treatment Guidelines (2021) recommend NAATs for these infections because they are very sensitive. The sample, such as urine or a swab, usually goes to a lab. Many clinics report results in about one to three days, though timing varies by clinic and lab.

Standard blood tests for syphilis, hepatitis B and hepatitis C are also commonly sent to a lab. Herpes and trichomoniasis testing depend on the kind of test used and where it is run.

Test type	When you may get results
Rapid HIV (finger stick or oral swab)	Often within about 30 minutes, per the CDC
Rapid syphilis, where offered	May be available the same day; ask the clinic
Chlamydia and gonorrhea NAAT	Often about 1 to 3 days
Lab-based blood tests (syphilis, hepatitis B and C, HIV blood draw)	Often a few days; ask the clinic

How long do STD test results take?

The honest answer is that it depends on the test and the clinic. Rapid tests may be read in minutes. Lab tests often take a few days. Some results can take longer if a sample needs to be repeated or sent to an outside lab.

The best habit is to ask two questions before you leave: how will I get my results, and when should I expect them? Clinics may use a phone call, a patient portal or a return visit.

Materials you will need

You do not need much. Gather these before you go.

A photo ID, if you have one. Ask the clinic what is required.
Your insurance card or Medicaid card, if you have one. Several Columbia clinics also list sliding-scale or free options.
A working phone number you will answer, so staff can reach you about results.
A short list of dates and symptoms, if you have any, and the types of sex you have had (oral, vaginal, anal). This helps the clinician choose swabs and sites.
A list of medicines you take, including PrEP, if applicable.
Your questions, written down so you do not forget them.

If you are under 18, South Carolina law (S.C. Code Ann. 63-5-350) allows health services to be provided to minors of any age without parent or guardian consent when an authorized provider considers them necessary. The statute does not mention STDs by name, and the Guttmacher Institute lists South Carolina as allowing minors to consent to STI services. Ask the clinic how it handles this.

Step-by-step: getting tested in Columbia

Step 1: Decide which tests to ask about

A clinician can help you choose. Testing is often based on the types of sex you have, where your body may have been exposed, and any symptoms. The CDC STI Treatment Guidelines (2021) describe testing by exposure site. For example, a throat or rectal swab may be offered in addition to a urine sample.

If you are not sure what to request, say so. You can say, "I would like a full STI check. What do you recommend for me?"

Step 2: Think about timing and window periods

Every infection has a window period. This is the time after an exposure when a test may not yet detect an infection. A test taken during the window can come back negative even if an infection is present.

For HIV, the CDC gives these general windows:

A nucleic acid test may detect HIV about 10 to 33 days after an exposure.
An antigen/antibody lab test on a blood draw may detect it about 18 to 45 days after.
An antigen/antibody rapid test on a finger stick may take about 18 to 90 days.
Antibody tests, including self-tests, may take about 23 to 90 days.

If you had a recent exposure, tell the clinician. They may suggest testing now and again later. If it has been fewer than 72 hours since a possible HIV exposure, ask about PEP right away. Per the CDC, PEP must be started within 72 hours, and a clinician decides whether it is right for you. CAN Community Health and Planned Parenthood South Atlantic both list PEP among their services.

For other infections, window periods differ. The clinician can explain them for your situation.

Step 3: Pick a clinic and choose walk-in or appointment

Here are the Columbia options, with what each organization or directory has published. Hours and policies can change, so call first.

PALSS (Palmetto AIDS Life Support Services), 2638 Two Notch Rd, Ste 108, (803) 779-7257. The CDC NPIN listing shows free HIV, hepatitis B, hepatitis C and STI tests, and rapid HIV testing. It lists walk-in testing on Tuesdays from 3 to 8 p.m. and Thursdays from 3 to 7 p.m., plus walk-in only on the first and third Saturdays from 10 a.m. to 2 p.m. The CDC GetTested listing says an appointment is required, so confirm by phone.
CAN Community Health, 1911 Hampton St., (803) 849-8430. The clinic page lists free rapid HIV testing and testing for chlamydia, gonorrhea, syphilis, herpes, hepatitis B, hepatitis C and trichomoniasis, with treatment on site. It says walk-ins are accepted during regular hours, which it lists as Monday through Thursday 8:30 a.m. to 5:30 p.m. and Friday 8:30 a.m. to 12:30 p.m., with extended hours on select dates. The CDC NPIN listing says an appointment is required, so call to be sure. Sliding-scale fees and insurance, Medicaid and Medicare are listed.
Planned Parenthood South Atlantic, Columbia Health Center, 2712 Middleburg Dr, Ste 107, (803) 256-4908. The CDC NPIN listing shows rapid HIV testing and tests for chlamydia, gonorrhea, hepatitis B, herpes and syphilis. It says an appointment is required, but you are welcome to walk in during open hours to book or ask about same-day availability. Insurance and Medicaid are accepted. Call to ask about cost and eligibility.
Cooperative Health, Five Points Walk-In Center, 1228 Harden St, Ste A, (803) 722-1565. CDC GetTested lists HIV, hepatitis C, chlamydia, gonorrhea and syphilis testing with no appointment required. Sliding-scale fees are listed. The listing does not give hours, so call before you go.
Cooperative Health, Waverly Family Practice, 1228 Harden St, Ste C, (803) 748-1181. CDC GetTested lists rapid and blood draw HIV testing, hepatitis C, chlamydia, gonorrhea and syphilis, with an appointment required.
AHF Healthcare Center, 4100 N Main St, Suite 102, (803) 223-9895. CDC GetTested lists rapid HIV, chlamydia, gonorrhea and syphilis testing and a free HIV test, with an appointment required. Ask the organization about eligibility for other tests.
Richland County Health Department, 2000 Hampton St. The South Carolina Department of Public Health (DPH) says STD, HIV and hepatitis C services continue at this site. The DPH page does not publish hours, fees or a clinic phone number. To make an appointment, call the DPH Care Line at 1-855-472-3432. The DPH also lists an STD/HIV Hotline at 1-800-322-2437.

For a fuller comparison, see our guide to STD testing in Columbia, where to get tested and what it costs. You can also browse the local testing list. The CDC's GetTested directory is another place to check locations and services.

Step 4: Call ahead with three questions

Do you offer rapid HIV testing today, and do I need an appointment?
Which other tests can you run, and when do those results come back?
What will this cost me, and are there free or sliding-scale options?

If a clinic's page does not list a price, say so on the call and ask directly. Do not assume a service is free or covered until the clinic confirms it.

Step 5: Go to your visit

Arrive a little early for paperwork. A staff member will ask about your health, your partners and the types of sex you have. These questions are routine and are used only to choose the right tests. You can answer in your own words, and nothing you share is a reason for judgment.

The sample may be a urine sample, a swab of the genitals, throat or rectum, a finger stick or a blood draw. Many swabs can be collected by you in private, if you prefer.

Step 6: Understand how you will get results

Before you leave, confirm how and when the clinic will share results. Ask what number the call will come from, so you recognize it.

For a rapid test, a staff member may give you the result in the room and explain what it means. For lab tests, expect to wait. Keep your phone nearby and check any voicemail.

Step 7: Plan your next steps

Whatever the result, ask what comes next. A clinician can explain whether a follow-up test is useful, whether partners should be tested, and how to lower the chance of future infections.

If a test finds a bacterial infection or trichomoniasis, the CDC notes these are curable with treatment that a clinician prescribes. HIV, herpes and HPV are not curable, but they are treatable or manageable with care from a clinician.

South Carolina allows expedited partner therapy for chlamydia and gonorrhea, according to the CDC's legal status page for the state, which cites an interpretation by the state Board of Medical Examiners. Ask your clinician whether it applies to you. The current wording of that board position could not be confirmed, so check with the clinic.

Free home HIV testing from the state

If getting to a clinic is hard, there is a state option for HIV. The South Carolina DPH In-Home HIV Testing Program offers a free HIV self-test to South Carolina residents age 17 or older. You can request one kit every 90 days through an online survey. Questions can go to [email protected] or the DPH line at 1-800-322-2437.

A kit comes by mail, so it is not a same-day option for everyone. The CDC notes that self-tests are antibody tests, and the window period applies. A reactive self-test needs follow-up testing with a clinician.

Tips to make the visit go smoothly

Call during open hours. Published hours may change, and some listings are older than others.
Go early in the day. If you want a same-day visit, early arrival can leave more time if a clinic is busy.
Do not urinate for about an hour before a urine test, unless the clinic tells you otherwise. Ask what they prefer.
Tell the clinician about all exposure sites. Throat and rectal infections can be missed if only a urine sample is taken.
Ask about vaccines and prevention. Depending on the clinic, this may include the HPV vaccine, PrEP and doxy-PEP, which a clinician decides whether to prescribe. CAN Community Health and PALSS list doxy-PEP, and the CDC issued its 2024 guidance on it.
Bring a friend if it helps. Many people find waiting easier with company.

Common mistakes to avoid

Assuming every test gives a same-day result. Only some rapid tests do. Plan for a few days for lab-based tests.
Testing too soon after an exposure. A test taken inside the window period may not detect an infection. Ask when to repeat it.
Skipping the results call. Not hearing back is not a result. If you have not heard by the date you were given, contact the clinic.
Assuming a walk-in will be seen immediately. Walk-in clinics can have waits, and some sites still ask for an appointment. Call first.
Stopping after one test. One result reflects that moment. Ask whether repeat testing makes sense for your situation.
Assuming a test is free. Some listings say free, others say sliding scale, and some give no price. Confirm before your visit.

What to expect from your results

Test results can seem simple, but they have limits. No test is perfect, and results may be affected by timing, the type of sample and the lab method.

A negative result may mean the test did not find signs of that infection at that time. If you were tested inside a window period, a clinician may suggest testing again.
A positive or reactive result usually means a clinician will want to confirm it or discuss treatment. A rapid HIV result that is reactive is followed by more testing, per the CDC.
An unclear result may mean a repeat sample is needed. This happens and is not a sign that you did anything wrong.

Only a clinician can interpret your results in the context of your health and history.

If your result is positive for a reportable infection, the clinic or lab may report it to the county health department. South Carolina law (S.C. Code Ann. 44-29-10) requires physicians to report diseases on the DPH list to the county health department. Ask the clinic what that means for you.

If you are pregnant

South Carolina law (S.C. Code Ann. 44-29-120) requires a physician attending a pregnant woman to take a blood sample at the first exam, or within three days after, and have it tested for syphilis, among other things. There is an exemption for a sworn religious objection. Ask your prenatal provider which tests they will run and when.

Where to start today

You do not need to figure it all out alone. Pick one clinic from the list above, call, and ask the three questions in Step 4. If the first clinic cannot see you today, try the next one. You can also use the CDC's GetTested page to look for free and low-cost testing sites.

Testing is a routine part of taking care of your health. Many people in Columbia use it, and the staff at these clinics see people from every background every day.

Same-Day STD Testing in Columbia: Rapid Tests and Quick Results