How Often Should You Get Tested for STIs? The CDC’s Actual Schedule

HIV once for every adult 13 to 64, hepatitis C once for every adult over 18, and at least annually for men who have sex with men. Plus the reason a urine test is not enough.

Illustration of a calendar with a check mark

There is an actual schedule, published by the CDC, and it is more specific than “get tested regularly.” Most men either do nothing or ask for a test that misses the sites they are most likely to be infected at.

The short answer

Every adult aged 13 to 64 should be tested for HIV at least once, and every adult over 18 should be tested for hepatitis C at least once in their lifetime. Men who have sex with men should be screened for chlamydia, gonorrhea and syphilis at least annually, and every three to six months at higher risk. And a urine sample only tests your urethra, throat and rectal infections are usually symptomless and are missed unless those sites are swabbed specifically.

The CDC schedule, at a glance

HIV At least once for every adult aged 13 to 64
Hepatitis C At least once in a lifetime for every adult over 18
Men who have sex with men Chlamydia, gonorrhoea and syphilis at least annually
At higher risk Every 3 to 6 months
Chlamydia and gonorrhoea window Detects most at 1 week, almost all at 2 weeks
Syphilis window About 1 month, almost all by 3 months
HIV antigen/antibody window 2 weeks, almost all by 6 weeks
Hepatitis C window 2 months, almost all by 6 months
Why urine alone is not enough It tests the urethra only; throat and rectal infections are missed unless swabbed

What STI tests should everyone have at least once?

Two tests are recommended for essentially the whole adult population regardless of behaviour, and both are commonly skipped.

HIV. Once, for everyone aged 13 to 64, on an opt-out basis, meaning it should be offered as routine rather than requested. The USPSTF frames it as ages 15 to 65. This is a one-time baseline for people at low ongoing risk, and more often for anyone with continuing exposure.

Hepatitis C. At least once in a lifetime for all adults 18 and over. This one catches people by surprise because it is not primarily sexually transmitted, but it is common, frequently silent for decades, and now curable with a course of tablets.

Hepatitis B testing is recommended for anyone at increased risk, which includes men who have sex with men, people who inject drugs, people from regions of high endemicity, people on haemodialysis, and anyone immunocompromised or living with HIV.

How often should you get tested for STIs?

The clearest schedule in the guidelines is for men who have sex with men, and it is worth reproducing exactly.

Infection Routine Higher risk
Chlamydia At least annually Every 3 to 6 months
Gonorrhea At least annually Every 3 to 6 months
Syphilis At least annually Every 3 to 6 months
HIV At least annually Every 3 to 6 months
Hepatitis B One-time testing ,

“Higher risk” in the guidelines means multiple or anonymous partners, sex in conjunction with drug use, or partners who do either. It is a description of circumstances, not a judgement about them.

For heterosexual men there is no equivalent routine screening recommendation, and that is a genuine gap rather than an oversight. The USPSTF concluded that the evidence is insufficient to assess the balance of benefits and harms of chlamydia and gonorrhea screening in men, because the trials that would settle it have not been done. Meanwhile the screening recommendation for women under 25 is annual and graded B.

The practical reading: if you are a heterosexual man with new or multiple partners, nobody is going to schedule this for you, and an annual test is a reasonable thing to ask for on your own initiative.

Related: All STI articles

Why is a urine test not enough?

This is the single most useful thing on this page.

Chlamydia and gonorrhea do not only infect the urethra. They infect the throat and the rectum, those infections are usually completely symptomless, and a urine test cannot detect them. It samples one site.

If oral or anal sex is part of your life, the swabs need to be taken from those sites specifically: a throat swab and a rectal swab, in addition to urine. In many settings you will not be offered them unless you say so, and in some you can self-collect them.

Pharyngeal gonorrhea matters beyond the individual case: the throat is thought to be an important reservoir for antimicrobial resistance, because the organism sits there alongside other bacteria and swaps genetic material with them.

What is not included in a standard STI panel?

Herpes. Blood testing for HSV is not part of routine screening for people without symptoms. The reason is not squeamishness. It is that a positive antibody result does not tell you where the infection is, when you acquired it, or whether you will transmit it, and false positives are a real problem. If you have a symptom, that gets swabbed. Screening asymptomatic people is not recommended.

HPV. There is no approved routine HPV test for men. What exists for men is prevention: the HPV vaccine, which the CDC describes as among the most effective methods of preventing transmission. Vaccination is the intervention, not testing.

So “I had the full panel and it was clear” generally means clear of chlamydia, gonorrhea, syphilis, HIV, and usually hepatitis. It is not a statement about herpes or HPV.

How long after exposure should you get tested?

Screening on a schedule and testing after a particular event are different problems. For the second, the window period governs.

Infection Detects most Catches almost all
Chlamydia and gonorrhea 1 week 2 weeks
Syphilis about 1 month 3 months
HIV, antigen/antibody blood test 2 weeks 6 weeks
Hepatitis C 2 months 6 months

Testing before the window has passed produces a negative that means nothing. If the exposure is recent and high risk, that is a same-day conversation about HIV post-exposure prophylaxis rather than a test, PEP has to start within 72 hours to work. For bacterial STIs there is a separate after-sex antibiotic, doxy-PEP, with its own limits.

Where should you get tested?

Public STI clinics and health department services are generally free or low cost, do this all day, and will not need persuading to swab a throat. Primary care can order the same tests but may not think to test extragenital sites unless asked.

Mail-in kits are legitimate for the common bacterial infections and are a reasonable option if the alternative is not testing at all. Check what sites the kit covers before buying. Many are urine-only, which brings you back to the problem above.

Whatever route you take, ask for the results in writing, and note which sites were sampled.

If something does come back positive, the treatment is usually straightforward and the harder part is the conversation, including the options that let a health department make it for you. And if your question is really about prevention rather than detection, what condoms do and do not cover is the more useful page.

Common questions about STI testing frequency

How often should you get tested for STIs?

Every adult aged 13 to 64 should be tested for HIV at least once, and every adult over 18 for hepatitis C at least once. Men who have sex with men should be screened for chlamydia, gonorrhoea and syphilis at least annually, and every three to six months at higher risk. Other men should test according to partner change and exposure.

How long after exposure should you get tested?

It depends on the infection. Chlamydia and gonorrhoea are detectable at about a week and almost all by two. Syphilis takes around a month and up to three. HIV antigen/antibody testing catches most by two weeks and almost all by six. Hepatitis C takes two months and up to six.

Does a urine STI test catch everything?

No, and this is the most consequential gap in routine testing. A urine sample tests your urethra only. Throat and rectal infections are usually symptomless and are missed entirely unless those sites are swabbed specifically. If you have had oral or anal sex, ask for the relevant swabs by name.

What is not included in a standard STI panel?

Herpes is usually not included unless you ask, because routine blood screening for it is not recommended in people without symptoms. HPV has no approved screening test for men at all. Trichomoniasis is often omitted. Assuming a clear panel means clear of everything is a common mistake.

Can I get tested the day after a risky encounter?

You can, but the result tells you about your status before that encounter, not about it. Every test has a window period during which an infection is present but undetectable. Testing too early produces a falsely reassuring negative, which is worse than not testing, because it stops you testing again at the right time.

How we sourced this: every figure on this page is traced to one of the 4 named sources listed below.No product is sold here and no link is paid.Who writes this

Sources

  1. Centers for Disease Control and Prevention. Sexually Transmitted Infections Treatment Guidelines, 2021. CDC MMWR
  2. Centers for Disease Control and Prevention. STI treatment guidelines: men who have sex with men. CDC
  3. US Preventive Services Task Force. Chlamydia and gonorrhea: screening. USPSTF
  4. University of Oregon Health Center. STI screening timetable (window periods). Screening timetable (PDF)

This article is for information only and is not medical advice. It cannot account for your individual circumstances. Talk to a doctor about your own situation, particularly before starting or stopping any prescription medication.