Possible HIV exposure within 72 hours?
Testing is not the first question. PEP is emergency HIV prevention and needs to start as soon as possible, no later than 72 hours after a possible exposure.
Read CDC PEP guidance →Figure out when to test, which sample sites matter, and whether at-home or in-person testing fits your situation. We compare paid options, but we also show you free testing routes.
Start with the situation, not the shopping cart
The right next step can change based on timing, symptoms, and where exposure occurred.
Testing is not the first question. PEP is emergency HIV prevention and needs to start as soon as possible, no later than 72 hours after a possible exposure.
Read CDC PEP guidance →An online panel cannot diagnose every cause of symptoms. Clinical evaluation may be more useful than buying the biggest mail-in panel.
Use the symptom guide →Match the test to timing and exposure site. Oral or anal exposure can mean throat or rectal testing matters; a urine-only screen can miss infections at other sites.
Build a sensible testing plan →Choose how you want to get tested
Home collection and in-person lab testing each have tradeoffs. The best choice depends on what you are testing for, timing, and which sample sites are needed.
Order online and collect the specified sample at home. Availability, turnaround, privacy practices, and which infections or anatomical sites are covered vary by provider.
Compare kits →National lab-testing services can arrange local specimen collection, sometimes the same day. Location count, appointment rules, and turnaround vary by provider and test.
Find a lab →Symptoms overlap with many non-STI conditions. Use the guide to understand what testing can and cannot answer, and when in-person care makes more sense.
Check symptoms →Simple & straightforward
A good test is not just “a panel.” Start with exposure, timing, and the sample sites that actually matter.
Match tests to the infection(s), timing, and exposure sites you actually need to evaluate.
Choose home collection, a lab order, a clinic, or a free/public-health option.
Follow the collection instructions carefully. Some exposures require throat, rectal, blood, urine, or vaginal samples rather than a single “standard” sample.
Review the provider’s result process. Positive screens may need confirmatory testing or treatment; an early negative may need repeat testing.
Options that work for you
Quality, privacy, turnaround, medical support, and lab credentials vary by service. Check the details before ordering.
No stigma. No judgment.
STIs can be asymptomatic, and testing needs vary by age, anatomy, sexual practices, pregnancy, symptoms, and risk. The goal here is useful information without shame or alarmism.
Home-test and lab providers have different billing, records, reporting, and data practices. Read the provider policy rather than assuming “100% private.”
A technically good test can still miss an infection if the wrong anatomical site is sampled. Throat and rectal testing matter for some exposures.
Before ordering, check what happens after a positive result, an indeterminate result, or a negative test taken during a window period.
Before you buy a “10-panel”
Straight answers – no scare tactics
Real information to help you make informed decisions about your sexual health.
Compare what each service actually tests, specimen types, pricing, turnaround, lab details, and follow-up support.
Read guide → ReviewsCompare national lab-order services, collection-site availability, costs, and expected turnaround.
Read guide → CouplesIt's not about distrust — it's about care. How to bring it up and the best options for two.
Read guide → Free ResourcesCDC GetTested, TakeMeHome, Planned Parenthood, and more. No-cost testing does exist.
Read guide → SymptomsPhotos and symptoms alone are not definitive. Learn what can overlap and when testing or an exam is more useful.
Read guide → TimingTesting too early can give false results. Here's exactly when to test for each STD.
Read guide →Quick answers
It depends on the infection and test type. Testing too early can miss an infection. HIV has test-specific window periods; for other STIs, use the lab or clinician guidance for the test you are taking.
Possibly. Testing should match anatomical sites of exposure. For example, oral or receptive anal exposure may call for pharyngeal or rectal testing rather than urine testing alone.
Not necessarily. “Standard panel” is not a universal definition. CDC does not recommend routine herpes blood screening for everyone without symptoms, so check exactly what a commercial panel includes and why.
Seek urgent medical guidance about PEP rather than waiting for a screening test. PEP needs to start as soon as possible and no later than 72 hours after a possible exposure.
Compare testing options by timing, specimen type, follow-up, privacy, and price. Free and public-health routes are included too.
Compare testing options