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.

Many people want one visit that covers everything. In Boston, that is possible, but "full panel" has no single official definition. What gets tested depends on the clinic, your history and what a clinician recommends.

This guide walks you through getting a broad panel on the same day you decide to go. It covers what to bring, which Boston clinics take walk-ins, what to say at check-in and what to expect afterward.

What "full panel" usually means

Clinics use the phrase loosely. At a minimum, most panels include HIV, syphilis, chlamydia and gonorrhea. Some add hepatitis C. Others add tests for hepatitis B or trichomoniasis, depending on your situation.

Boston Medical Center's Boston STD Clinic lists free routine testing for HIV, chlamydia, gonorrhea, syphilis and hepatitis C. That is a good picture of a broad panel at a public clinic.

Herpes is handled differently. The CDC STI Treatment Guidelines (2021) do not recommend routine herpes blood testing for people without symptoms. If you are curious about herpes, ask a clinician what testing makes sense for you.

The exact set of tests is a conversation with the clinic, not a menu you have to memorize.

What you need before you go

A phone. Hours can change, and some clinics ask you to call first.
Photo ID, if you have one. Ask the clinic what it requires. Codman Square Health Center says it offers testing and treatment regardless of citizenship status.
Your insurance card, if you have insurance. Fenway Health bills insurance when you have it. If you are uninsured, the clinic says grant funding can cover a visit at no charge.
A short list of notes. Include the approximate date of your last test, any symptoms, and the types of sex you have had (oral, vaginal, anal). Partner names are not needed.
A list of medicines you take. This includes PrEP, if you use it.
About two hours of flexibility. Walk-in clinics work first come, first served.

Step by step: getting a broad panel the same day

Step 1: Pick a clinic that accepts walk-ins

Same-day testing in Boston mostly means walk-in hours. These clinics list them:

Fenway Health Sexual Health Clinic, 1340 Boylston Street, 4th floor (Ansin Building). Walk-in hours are Tuesday 1 to 7 p.m., Wednesday and Thursday 3 to 7 p.m., and Friday 9 a.m. to noon. Monday 9 a.m. to 4 p.m. is by appointment only. Check-in closes 30 minutes before the end time. The page is aimed at gay, bisexual and other men who have sex with men, transgender and gender diverse people, and their partners. Phone: 617-267-0159.
TrueCare@MAC testing (Multicultural AIDS Coalition), 9 Palmer Street, Roxbury. Testing is available with or without an appointment. Hours run Monday, Tuesday, Thursday and Friday 10 a.m. to 5 p.m. (testing 10:30 to 4), Wednesday noon to 7 p.m. (testing 12:30 to 6) and Saturday 11 a.m. to 4 p.m. (testing 11:30 to 3). Phone: 617-442-1622.
X-Clinic at Codman Square Health Center, 637 Washington St., Dorchester. Express visits, meaning no symptoms and no known exposure, are walk-in during operating hours. Codman's two web pages list different schedules, so call 617-822-8350 before you go.

The Boston STD Clinic at 725 Albany St. does not say on its page whether it accepts walk-ins. Call 617-414-2803 and ask whether a same-day slot is open. Its page lists Monday, Wednesday and Friday 9 a.m. to 4 p.m., and Tuesday and Thursday 9 a.m. to 7 p.m., but it also lists Tuesday with the shorter days, so confirm by phone.

For a longer list, see the local testing list. For costs across clinics, see our guide to STD testing in Boston, where to go and what it costs.

Step 2: Call ahead for two minutes

Even at walk-in sites, a short call helps. Ask these questions:

Are you taking walk-ins today, and when does check-in close?
Which infections are included in a routine visit?
Is there a charge for me, and who would bill me?
How and when will I get results?

The Mayor's Health Line, 617-534-5050, is a free and confidential service that offers health information and referrals in multiple languages. It is a good place to start if you are unsure where to go.

Step 3: Arrive early and say what you want

Check-in at Fenway closes 30 minutes before the end of each walk-in session. Arriving early keeps you from being turned away.

At check-in, you can say, "I would like a full set of STD tests. What do you recommend for me?" This puts the choice in the clinician's hands, which is where it belongs.

Step 4: Answer the clinician's questions honestly

Clinicians ask about sex, partners and symptoms so they can pick the right tests and the right body sites. Depending on the types of sex you have had, they may suggest swabs from the throat, rectum or genitals, along with a urine sample and a blood draw.

These questions are routine. The clinic is not judging you. Accurate answers lead to a panel that fits you.

Step 5: Give your samples

Expect some mix of urine, swabs and blood. Many swabs can be collected by you in private, if you prefer. Ask if you would like that option.

Blood draws are quick. Tell the staff if needles make you lightheaded so they can have you sit or lie down.

Step 6: Ask about same-day treatment and prevention

Before you leave, ask whether the clinic offers other services at the same visit. The clinics above list services such as PrEP, PEP and treatment. Fenway also lists doxy-PEP. Whether any of these are right for you is a decision for a clinician.

PEP is time-sensitive after a possible HIV exposure. If that applies to you, say so at check-in.

Step 7: Confirm how you will get results

Do not leave without knowing how you will hear back. Fenway says results take 3 to 5 business days. Some clinics list rapid HIV testing, including Codman, Planned Parenthood League of Massachusetts and DotHouse Health. Those listings do not say how quickly other results return, so ask.

"Same day" in most cases means a same-day visit, not same-day results for every test.

Timing: when a test can detect an infection

A test taken too soon after an exposure may not detect an infection. The CDC gives these windows for HIV:

A lab antigen/antibody test on blood from a vein can usually detect HIV 18 to 45 days after an exposure.
An antigen/antibody test using a finger prick can take 18 to 90 days.
Antibody tests can take 23 to 90 days.

For other infections, windows vary by test. Ask the clinician when you should come back for a repeat test. If you had a recent exposure, a clinician may suggest testing now and again later.

Tips for a smoother visit

Go on a weekday afternoon or evening. Fenway's Tuesday through Thursday sessions run into the evening, and MAC is open to 7 p.m. on Wednesday.
Avoid urinating right before you go, if you can. Clinics often want a urine sample, and some prefer that you have not urinated for a short while. Ask when you call.
Bring a charged phone. Some results come by patient portal or phone call.
Ask about privacy. Massachusetts law (M.G.L. c. 111, s. 119) makes venereal disease reports and records non-public, with disclosure only on a judicial order or to officials whose duties entitle them. You can ask the clinic how it contacts you.
If you are a teen, Massachusetts law (M.G.L. c. 112, s. 12F) lets a minor who reasonably believes they are at risk of exposure consent to STI care without a parent. The City of Boston tells people 13 or older they can get a confidential STI test without parental permission.

Common mistakes to avoid

Assuming every panel is the same. Ask which infections are included. Do not assume hepatitis C or throat and rectal swabs are covered unless the clinic says so.
Arriving at the very end of walk-in hours. Check-in can close before the doors do.
Relying on one schedule. Codman's own pages disagree. Call first.
Testing too soon after an exposure and stopping there. Ask about a follow-up test.
Skipping the results question. Know how you will be contacted before you leave.
Mixing up similar clinics. The Boston STD Clinic at Boston Medical Center and the Boston Public Health Commission's listing at 774 Albany St. are different providers on the same street. The CDC GetTested directory lists the Commission's site at 617-534-3976 but does not list hours, so call before you go.

What results can look like

A negative result generally means the test did not detect that infection in the sample at that time. It may not rule out a recent exposure, which is why timing matters.

A positive result means the test detected a sign of an infection. A clinician will usually confirm the result and explain the next steps. Bacterial infections like chlamydia, gonorrhea and syphilis, as well as trichomoniasis, are curable with treatment from a clinician. HIV, herpes and HPV are not curable, but they are treatable or manageable.

If you test positive for chlamydia, Massachusetts regulation allows clinicians to provide treatment for partners under expedited partner therapy (M.G.L. c. 111, s. 121B). Ask your clinician how it works for your situation.

Massachusetts requires reporting of certain infections to local boards of health under M.G.L. c. 111, s. 111. Those records are not public. The state health department and your clinic can explain what is reported.

Local numbers, in context

Suffolk County, which includes Boston, had a chlamydia rate of 807.8 per 100,000 people in 2021 (6,230 cases) and a gonorrhea rate of 298.0 per 100,000 (2,298 cases), according to CDC county data as republished by Boston 25 News. These are county figures, not city-only figures. They show that testing is a routine part of health care here, not a rare event.

If you cannot get a same-day slot

Not every walk-in session has room. If you are turned away, ask for the next opening. Boston Medical Center's STD clinic takes appointments by phone. Planned Parenthood League of Massachusetts (Greater Boston Health Center, 1055 Commonwealth Ave, 617-295-7235) requires an appointment and offers a sliding scale. DotHouse Health (617-288-3230) lists sliding-scale fees.

The Boston Public Health Commission's Infectious Disease Bureau (617-534-5395) can also point you toward services. For a city overview, see the City of Boston's Getting Tested for STIs page.

Full Panel STD Testing Near You in Boston: Same-Day Options