STI testing for men is simpler than most people expect. For the two most common bacterial infections, chlamydia and gonorrhea, all you need to do is pee in a cup. Other STIs require a blood draw, and some require a swab of the affected area. What you’re tested for, and how, depends on your sexual history and any symptoms you’re experiencing.
Urine Tests for Chlamydia and Gonorrhea
A urine sample is the standard way to screen men for chlamydia and gonorrhea. The lab runs what’s called a nucleic acid amplification test (NAAT) on the sample, which detects genetic material from the bacteria. These tests have sensitivity well above 90% and specificity of 99% or higher, making them extremely reliable. The CDC considers urine samples equivalent to, and sometimes superior to, urethral swabs for detecting these infections in men.
For the most accurate result, you’ll want to provide a “first-catch” sample, meaning the initial stream of urine rather than midstream. Ideally, urine should have been sitting in your bladder for two to three hours before you collect it, so avoid using the restroom right before your appointment. You fill the cup about halfway and that’s it.
Blood Tests for HIV, Syphilis, and Hepatitis
Several STIs can only be detected through blood. A standard draw from your arm is used to test for HIV, syphilis, hepatitis B, and hepatitis C. Herpes can also be tested through blood, though providers don’t always include it in routine panels unless you have symptoms or a known exposure.
For HIV specifically, there are two common testing methods. A blood test using antigen/antibody detection is the most sensitive option, catching most infections within two weeks and nearly all by six weeks. Rapid oral swab tests also exist and can give results in about 20 minutes, but they have a longer window period: roughly one month to catch most infections and up to three months for near-complete accuracy.
Swab Tests for Specific Sites
If you have visible sores, blisters, or unusual discharge, a provider may swab the affected area directly. This is common for diagnosing herpes during an active outbreak, since fluid from a blister can be tested for the virus. Sores that might be syphilis can also be swabbed.
For men who have sex with men, testing goes beyond urine. The CDC recommends annual screening for chlamydia and gonorrhea at all sites of sexual contact, including the rectum and throat, regardless of condom use. If you’re at higher risk (multiple partners, anonymous partners, or sex combined with drug use), screening every three to six months is recommended. These rectal and throat swabs are quick and only mildly uncomfortable. A urine test alone would miss infections at these sites entirely, since bacteria in the throat or rectum won’t show up in your urine.
What About HPV and Herpes?
Two of the most common STIs have significant testing limitations in men. There is no approved test to determine a man’s HPV status. No blood test, urine test, or swab can screen for the virus in men. The only way HPV is identified is when it causes visible genital warts, which a provider diagnoses by visual inspection. Most men with HPV never develop symptoms and clear the virus on their own without ever knowing they had it.
Herpes testing is possible through a blood test that detects antibodies, but it isn’t part of standard screening panels. Blood tests can’t tell you where on your body you might experience outbreaks, and false positives are common enough that the CDC doesn’t recommend routine herpes screening for people without symptoms. If you have an active sore, a direct swab of the lesion is far more useful.
How Long to Wait After Exposure
Testing too soon after a potential exposure can produce a false negative. Every infection has a “window period,” the time it takes for the bacteria or virus to build up enough to be detectable. Here’s what to keep in mind:
- Chlamydia and gonorrhea: One week catches most infections. Two weeks catches nearly all.
- Syphilis: One month catches most. Three months catches nearly all.
- HIV (blood test): Two weeks catches most. Six weeks catches nearly all.
- Hepatitis B: Three to six weeks.
- Hepatitis C: Two months catches most. Six months catches nearly all.
- Herpes (blood test): One month catches most. Four months catches nearly all.
If you test negative but it’s been less than the full window period, consider retesting once enough time has passed. A negative result at one week after exposure is less reliable than one at four or six weeks.
What to Expect at the Appointment
A typical visit takes 15 to 30 minutes. You’ll start by answering questions about your sexual history: number of partners, types of sexual contact, condom use, and any symptoms. Be honest, because your answers determine which tests are ordered. Someone in a monogamous relationship being screened as a precaution might only need urine and blood. Someone with multiple partners and both oral and anal sex might need urine, blood, and throat and rectal swabs.
The provider may also do a brief visual exam of your genitals, checking for sores, warts, discharge, or swelling. This is quick and helps catch things like herpes lesions or genital warts that don’t show up on lab tests.
Results typically take five to ten days, though rapid HIV tests can give you an answer in minutes. If anything comes back positive, treatment for bacterial infections like chlamydia, gonorrhea, and syphilis is straightforward with antibiotics. You’ll also be asked to notify recent sexual partners so they can get tested.
How Often to Get Tested
Screening frequency depends on your risk level. Men who have sex with men should be tested for chlamydia, gonorrhea, syphilis, and HIV at least once a year, and every three to six months if they have multiple or anonymous partners. Men who have sex only with women don’t have the same blanket annual recommendation, but testing is still important after unprotected sex with a new partner, when entering a new relationship, or whenever symptoms appear. HIV testing at least once in a lifetime is recommended for all adults regardless of risk factors.