All lab testsSTI & Infectious Disease
Confidential, judgment-free STI testing without an awkward conversation at your doctor's office. Order any test or the full STI panel — your results land in your private TestWell portal in 1-3 business days.
18 options in this category · browse every category
24 tests & panels
Discreet, fast, and comprehensive STI screening
$125 at other labs
$84.99
+ $6 lab processing fee
Complete peace of mind — every major STI in one order
$450 at other labs
$249.99
+ $6 lab processing fee
Every common cause of abnormal discharge, one visit
$374 at other labs
$189.99
+ $6 lab processing fee
Measures three classes of antibody (IgG, IgA, IgM) to Candida albicans — used to support a diagnosis of invasive or deep candida infection in the right clinical setting.
$249.99
+ $6 lab processing fee
Highly sensitive urine-based test for the two most common bacterial STIs.
$70 at other labs
$51.99
+ $6 lab processing fee
Both cytomegalovirus antibodies in one draw — IgG for past exposure and IgM for recent or reactivated infection.
$124 at other labs
$74.99
+ $6 lab processing fee
Detects IgG antibodies to cytomegalovirus — establishes whether you have ever been infected.
$65 at other labs
$40.99
+ $6 lab processing fee
Detects IgM antibodies to cytomegalovirus — the marker of a recent or reactivated CMV infection.
$59 at other labs
$40.99
+ $6 lab processing fee
The full Epstein-Barr virus antibody profile — VCA IgM, VCA IgG and EBNA IgG with an interpretation — to tell a current mono infection from a past one.
$94.99
+ $6 lab processing fee
One urine sample screens for chlamydia, gonorrhea, and Mycoplasma genitalium — the STI most standard panels leave out.
$196 at other labs
$149.99
+ $6 lab processing fee
Tests for acute Hepatitis A infection — important for travelers and food handlers.
$49 at other labs
$32.99
+ $6 lab processing fee
Tests for Hepatitis B surface antigen and antibodies to determine infection or immunity status.
$99 at other labs
$59.99
+ $6 lab processing fee
Measures the amount of hepatitis B virus DNA in your blood (viral load) by Abbott RealTime PCR — used to monitor chronic hepatitis B and the response to antiviral treatment. For people already diagnosed; this is not a screening test.
$849.99
+ $6 lab processing fee
Screens for Hepatitis C antibodies with reflex to confirmatory RNA testing if positive.
$62 at other labs
$29.99
+ $6 lab processing fee
Comprehensive hepatitis screening covering Hepatitis A, B, and C antibodies and antigens.
$89 at other labs
$69.99
+ $6 lab processing fee
Type-specific antibody test distinguishing between HSV-1 (oral) and HSV-2 (genital) herpes.
$105 at other labs
$54.99
+ $6 lab processing fee
Fourth-generation HIV test — detects both HIV antibodies and p24 antigen for earlier detection.
$55 at other labs
$38.99
+ $6 lab processing fee
Two-tier testing for Lyme disease — screens with ELISA and confirms with Western blot if positive.
$100 at other labs
$64.99
+ $6 lab processing fee
Screens for infectious mononucleosis (mono) caused by the Epstein-Barr virus.
$84.99
+ $6 lab processing fee
The treponemal-first (reverse-sequence) syphilis algorithm — a total antibody screen with automatic reflex to RPR titer and a second confirmatory test. Quest test code 90349.
$49.99
+ $6 lab processing fee
Screens for syphilis with automatic confirmatory testing if positive — discreet and accurate.
$52 at other labs
$21.99
+ $6 lab processing fee
Tests for the most common curable STD — often asymptomatic, especially in men.
$79 at other labs
$60.99
+ $6 lab processing fee
Urine test for the three genital mycoplasmas that standard STI panels skip — Ureaplasma, Mycoplasma hominis, and Mycoplasma genitalium.
$139.99
+ $6 lab processing fee
One self-collected vaginal swab checks the three most common causes of vaginitis — bacterial vaginosis, yeast infection, and trichomoniasis.
$269 at other labs
$149.99
+ $6 lab processing fee
Not sure where to start?
Answer 4 quick questions and we'll recommend the right panel — plus add-ons to round out your results.
100+ tests available. No subscription. HSA / FSA accepted.
STD testing is not one test. Chlamydia and gonorrhea are detected from a urine sample; HIV, syphilis and hepatitis from blood; trichomoniasis, bacterial vaginosis and yeast from a vaginal swab; and each infection has its own window — the time after exposure before a test turns positive. The right order depends on symptoms, the exposure, and how long ago it was. The panels below cover the standard screens recommended for sexually active adults; the single tests are for a specific exposure or a recheck.
Everything here is ordered online with a physician's review and collected at a Quest or Labcorp patient service center — no clinic visit, and results in your private portal in 1–4 business days. Positive results come with clear next steps, and every infection on this page is treatable or manageable.
| If you want to… | Order | Why |
|---|---|---|
| Routine screening for a sexually active adult, or a new partner | STI Basic Panel$84.99 · 2 tests | HIV plus chlamydia and gonorrhea from one visit — add the syphilis test for the full CDC baseline |
| A full screen after a higher-risk exposure or before a new relationship | STI Comprehensive Panel$249.99 · 7 tests | HIV, chlamydia and gonorrhea, syphilis, herpes, hepatitis B and C, and trichomoniasis |
| Burning with urination, discharge, or a partner diagnosed with chlamydia or gonorrhea | Chlamydia & Gonorrhea (RNA, Urine)$51.99 · single test | Urine RNA test for the two most common bacterial STIs; test 1–2 weeks after exposure |
| Possible HIV exposure | HIV 1/2 Antigen & Antibodies (4th Gen)$38.99 · single test | 4th-generation antigen/antibody test; detects most infections 2–6 weeks after exposure |
| A painless sore, a body rash, or syphilis screening | Syphilis Test (RPR with Confirmation)$21.99 · single test | Screen with automatic confirmation; positive 3–6 weeks after exposure |
| Vaginal discharge, odor, itching or irritation | Vaginitis Panel (BV, Yeast & Trichomonas)$149.99 · single test | Self-collected swab for bacterial vaginosis, yeast and trichomoniasis — the three causes that overlap |
| Possible hepatitis exposure, injection drug use history, or born 1945–1965 and never tested | Hepatitis Panel (A, B, C)$69.99 · single test | Hepatitis A, B and C from one blood draw |
| Tick bite with rash, fever or joint pain | Lyme Disease Serology with Reflex$64.99 · single test | Two-tier Lyme serology with automatic reflex confirmation |
| Sore throat, swollen glands and exhaustion in a teenager or young adult | Mono Test (Mononucleosis)$84.99 · single test | Mononucleosis antibodies |
Each infection has a window period before a test becomes reliable. Chlamydia and gonorrhea nucleic acid tests can detect infection within days, but 1–2 weeks after exposure is the standard wait to avoid a false negative. A 4th-generation HIV test detects most infections at 2–6 weeks, and a negative result at 45 days is considered conclusive for that test. Syphilis antibodies appear 3–6 weeks after exposure, occasionally later, so a negative early test is repeated at 6 and 12 weeks after a known exposure. Hepatitis B surface antigen is detectable at 1–9 weeks; hepatitis C antibodies at 8–11 weeks on average. Herpes antibody tests need 2–12 weeks and are interpreted with care because of false positives at low values.
If you have symptoms now, test now and retest after the window if the first result is negative. A possible HIV exposure within the last 72 hours is an emergency: post-exposure prophylaxis is time-critical and needs same-day care, not a lab order.
The CDC recommends at least one HIV test for everyone aged 13–64, yearly chlamydia and gonorrhea screening for sexually active women under 25 and for older women with new or multiple partners, yearly syphilis, HIV, chlamydia and gonorrhea screening for sexually active men who have sex with men (every 3–6 months with multiple partners), a hepatitis C test at least once for every adult, and hepatitis B testing for adults not known to be immune. Testing with each new partner, after any condomless sex with a partner of unknown status, and whenever symptoms appear is the practical rule. Pregnant women are screened for HIV, syphilis and hepatitis B early in pregnancy.
Chlamydia, gonorrhea, syphilis and trichomoniasis are cured with antibiotics; recent partners need testing and treatment, and a test of cure or retest at 3 months is standard for chlamydia and gonorrhea because reinfection is common. HIV is managed with daily medication that suppresses the virus to undetectable and prevents transmission; a positive screen is confirmed with a second test and linked to care promptly. Hepatitis C is curable with 8–12 weeks of oral medication; hepatitis B is managed and monitored. Herpes is managed with antiviral medication and is very common. TestWell results include what each result means and how to reach care; a clinician visit is the next step for any positive result.
The four-test screen: HIV, syphilis, chlamydia and gonorrhea — the CDC-recommended baseline for sexually active adults. The STI Basic Panel covers HIV plus chlamydia and gonorrhea (blood plus a urine sample); add the syphilis test, or choose the Comprehensive panel, for the full set.
Yes. Order online, a physician reviews the requisition, and you collect at a Quest or Labcorp patient service center. Results appear only in your private portal; nothing is billed to insurance, so no explanation of benefits is sent to a policyholder.
1–2 weeks for chlamydia and gonorrhea, 2–6 weeks for a 4th-generation HIV test (conclusive at 45 days), 3–6 weeks for syphilis, and 8–11 weeks for hepatitis C antibodies. Test earlier if you have symptoms and retest after the window.
Chlamydia and gonorrhea are tested from urine (do not urinate for an hour beforehand); HIV, syphilis and hepatitis from a blood draw. The vaginitis panel uses a vaginal swab you collect yourself in a private restroom. Throat and rectal infections need site-specific swabs that are not part of these tests.
Each test and panel shows its price on its page; the panels cost less than the same tests ordered separately, and the price is the same at Quest or Labcorp plus one lab processing fee per order. HSA and FSA cards are accepted.
Only after the window period for each infection. A negative result taken too early is repeated: chlamydia and gonorrhea at 2 weeks, HIV at 45 days for a conclusive 4th-generation result, syphilis at 6 and 12 weeks after a known exposure.
Educational only — not a diagnosis. Discuss any result outside the reference range with a clinician.