STD testing for men typically involves a urine sample, a blood draw, or a swab, depending on which infection is being checked. Most visits are straightforward and quick. There’s no single test that screens for everything at once, so your provider will select specific tests based on your symptoms, sexual history, and risk factors.
Urine Tests
A urine sample is the most common way to test men for chlamydia and gonorrhea, the two most frequently diagnosed bacterial STIs. You urinate into a cup, and the sample is analyzed using a method that detects tiny amounts of bacterial genetic material. These tests are over 95% accurate at confirming a true positive, with sensitivity ranging from 80 to 93% for picking up an actual infection. No swab of the urethra is needed for this, which makes it far more comfortable than older testing methods.
One important detail: you’ll be asked to collect the first part of your urine stream, not a midstream sample. The initial stream carries the highest concentration of bacteria from the urethra. You’ll also want to avoid urinating for at least one to two hours before your appointment so enough material builds up for an accurate result.
Trichomoniasis and mycoplasma genitalium, two less commonly discussed infections, can also be detected through a first-stream urine sample using similar technology.
Blood Tests
HIV, syphilis, and hepatitis B and C all require a blood draw. Each test looks for something slightly different. HIV blood tests detect both viral proteins and your body’s antibodies against the virus. Syphilis testing uses a two-step approach: one test looks for a general immune response that syphilis triggers, and a second confirms it by detecting antibodies specific to the syphilis bacterium. Hepatitis B and C tests also look for antibodies your immune system produces in response to those viruses.
FDA-approved self-testing kits now exist for both HIV and syphilis, which you can use at home. Self-collection kits for chlamydia and gonorrhea are also available, where you collect the sample yourself and mail it to a lab.
Swab Tests
If you’ve had oral or anal sex, a urine test alone won’t catch infections at those sites. Gonorrhea and chlamydia can infect the throat and rectum without causing symptoms, and a urine sample only detects bacteria in the urethra. For throat testing, a provider swabs the back of your throat (similar to a strep test). For rectal testing, a small swab is inserted a short distance into the rectum. Both are quick and cause only brief discomfort.
Men who have sex with men are recommended to get screened at all sites of contact (urethra, rectum, and pharynx for gonorrhea; urethra and rectum for chlamydia) at least once a year. Those at higher risk, including men on PrEP, men living with HIV, or those with multiple partners, are advised to test every 3 to 6 months.
Herpes Testing
Herpes testing works differently depending on whether you have active symptoms. If you have visible blisters or sores, a provider can swab the lesion directly. This is the most reliable method, and it works best when the sore is fresh and hasn’t started crusting over or healing.
If there are no visible sores, a blood test can check for antibodies to herpes simplex virus. However, blood tests have real limitations. They can produce wrong results if done too soon after exposure, and they’re less reliable in people with a low likelihood of infection. Most providers don’t include herpes in routine screening panels for this reason. It’s typically only tested when you have symptoms or a known exposure.
The Physical Exam
Some STI visits include a brief genital examination. A provider will visually inspect the penis for discharge, open sores, warts, or any unusual scar tissue. They’ll check the testicles for swelling or tenderness. In some cases, they may examine the rectal area for discharge or inflammation, and occasionally check the prostate for swelling. This exam helps identify infections that might not show up on lab tests right away, like genital warts caused by HPV or the sores of primary syphilis.
HPV Testing in Men
There is currently no approved HPV test for men. The HPV tests on the market are only cleared for use with cervical samples, and they aren’t clinically useful for screening men because HPV infection rates are so high in at-risk populations that a positive result doesn’t help guide care. For men at elevated risk of anal cancer (particularly men living with HIV or men who have had receptive anal sex), some clinics offer an annual digital rectal exam to check for masses, and a few specialized centers perform anal cytology, which is similar to a Pap smear but for the anal canal. These are not routine, though, and screening guidelines in this area are still evolving.
How Long to Wait After Exposure
Testing too soon after a potential exposure can produce a false negative. Each infection has its own window period, which is the time it takes for the test to reliably detect it.
- Chlamydia and gonorrhea: Most infections show up after 1 week. Waiting 2 weeks catches nearly all cases.
- HIV (blood test): A newer antigen/antibody blood test picks up most infections by 2 weeks, with nearly all detected by 6 weeks.
- HIV (oral swab): Detects most infections by 1 month, with nearly all caught by 3 months.
- Syphilis: Blood tests catch most cases after 1 month. Waiting 3 months catches almost all.
- Herpes (blood test): Antibodies appear in most people within 1 month, but it can take up to 4 months for the test to reliably detect them.
- Hepatitis B: 3 to 6 weeks after exposure.
- Hepatitis C: Most cases detectable by 2 months, with nearly all caught by 6 months.
If you test negative but it’s still within the window period, you may need to retest later to be sure. A single negative result right after a possible exposure doesn’t rule out infection.
What a Typical Visit Looks Like
At most clinics, the process starts with a few questions about your sexual history: number of partners, types of sexual contact, condom use, and any symptoms you’ve noticed. Based on your answers, the provider selects which tests to run. You might give a urine sample, have blood drawn, and get one or two swabs, all in the same visit. Results for most tests come back within a few days, though rapid HIV tests can return results in under 30 minutes.
If you have no symptoms and just want a general screening, expect urine and blood collection at minimum. The entire visit, from check-in to walking out, rarely takes more than 20 to 30 minutes. Many sexual health clinics, urgent care centers, and primary care offices offer STI testing, and at-home collection kits are an option if you prefer to skip the visit entirely.