STI symptoms in men usually come down to three things: discharge from the penis, a burning feeling when you pee, and sometimes pain or swelling of a testicle. Yet far from everyone notices anything. With gonorrhoea about 45 percent of men get symptoms, with chlamydia only around 11 percent (Korenromp et al., Int J STD AIDS 2002, PMID 11839163). No symptoms does not rule out an STI.
That is exactly the trap. You feel fine, so you assume nothing is wrong.
Which STI symptoms are most common in men?
The most reported complaints in men are discharge from the penis (sometimes clear, sometimes yellow or greenish), pain or burning when you pee, and itching or irritation around the head of the penis. Less often: pain or swelling of a testicle, or complaints at the anus or throat after anal or oral sex.
| Complaint | Often fits | Note |
|---|---|---|
| Clear or white discharge | Chlamydia | Often mild or absent |
| Yellower or greenish discharge | Gonorrhoea | Usually clearer |
| Burning when you pee | Chlamydia, gonorrhoea, trichomonas | Can resemble a bladder infection |
| Painful sore | Syphilis, herpes | A syphilis sore is often painless |
| Testicle pain or swelling | Chlamydia, gonorrhoea | Get this checked quickly |
Can you have an STI without symptoms?
Yes, and it is common. In men too, a lot of infection runs silently, especially with chlamydia. According to a review in JAMA, a large share of infections outside the genitals, such as in the throat or anus, are symptomless (Tuddenham et al., JAMA 2022, PMID 35015033). So you can have an STI and pass it on without knowing.
That is why testing on how you feel is unreliable. More on this in STI without symptoms.
Burning when you pee: STI or something else?
Burning when you pee in men can point to an STI, but also to an ordinary urinary infection or irritation. With an STI there is often discharge alongside it, and there has been a risk moment such as unprotected sex. Only a test truly tells them apart.
We line up the differences in burning when urinating. Compare it with STI symptoms in women in STI symptoms in women, because the patterns differ.
Can STI symptoms in men go away on their own?
Yes, and that makes it tricky. Discharge or burning can fade after a few days, while the STI is still present. With chlamydia especially, the first signal often weakens, after which you assume it is over.
The result is that an untreated infection can quietly continue and be passed on. Vanished complaints after a risk moment therefore do not mean you are safe.
With pain or swelling of a testicle, acting quickly does matter, because an ascending infection can affect the epididymis. Do not wait on that.
STI symptoms in the throat or anus in men
After oral or anal sex, chlamydia and gonorrhoea can also settle in the throat or anus. Usually that gives no complaints, sometimes a sore throat or itching and discharge at the anus. These infections outside the penis are often missed (Tuddenham et al., JAMA 2022, PMID 35015033).
For men who have sex with men this is extra relevant, because throat and anal tests otherwise stay out of view. Mention which sex you have had when you test, so the right site is included.
Want an overview of which checks fit your situation, then which STI test you need when is a good starting point.
What if your complaints are ambiguous?
In men the signals are often clearer than in women, but doubt is still possible. A little discharge or brief burning when you pee is easy to wave away. Yet a silent infection can sit underneath.
The rule of thumb: when in doubt after a risk moment, a short check is more reliable than waiting. That way you know quickly where you stand, without dwelling on it.
When should a man get checked?
Get checked with discharge, burning when you pee that persists, a sore or blister, or simply after unprotected sex with a new partner. The Dutch RIVM and the NHG-Standaard Het soa-consult advise low-threshold testing when there is risk, even without symptoms. Thuisarts.nl offers calm guidance on when testing makes sense.
For the most common complaints, a check for chlamydia, gonorrhoea and trichomonas is a logical start: anonymous, collected at home, results online. If you recognise yourself in the broader picture, read the overview in STI symptoms.
Sources
- Korenromp EL, et al. What proportion of episodes of gonorrhoea and chlamydia becomes symptomatic? Int J STD AIDS. 2002. PMID 11839163
- Tuddenham S, Hamill MM, Ghanem KG. Diagnosis and Treatment of Sexually Transmitted Infections: A Review. JAMA. 2022. PMID 35015033
- Peeling RW, Mabey D, Chen XS, Garcia PJ. Syphilis. Lancet. 2023. PMID 37481272
- RIVM, Sexual health and STIs. NHG-Standaard Het soa-consult. Thuisarts.nl.
This information is general and does not replace personal medical advice. Every STI test result at Discreet Test is reviewed by a BIG-registered doctor. Always discuss symptoms or treatment decisions with your GP, the GGD or a sexual health clinic.
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