Chlamydia Symptoms in Men: What to Look For and When to Get Tested

What does chlamydia feel like in men — or not feel like?

Many men with chlamydia have no symptoms at all. When symptoms do appear, they typically develop within one to three weeks of exposure. Common signs include:

• A clear, white, or cloudy discharge from the tip of the penis
• A burning or stinging sensation when urinating
• Irritation or itching inside the urethra
• Mild redness at the opening of the penis

Chlamydia can also infect the throat or rectum if those areas were exposed during oral or anal sex. Rectal chlamydia may cause discharge, itching, or discomfort — or nothing at all. Throat infections are almost always asymptomatic 1Ref 1Workowski KA, Bachmann LH, Chan PA, Johnston CM, Muzny CA, Park I, Reno H, Zenilman JM, Bolan GA (2021).Sexually Transmitted Infections Treatment Guidelines, 2021.Clinical presentation of chlamydia in men, site-specific testing approach, treatment regimens, partner notification, retesting recommendations, epididymitis and reactive arthritis as complications, and MSM screening frequency. Because symptoms overlap with other urethral infections and are often absent entirely, a test is the only way to know for certain whether chlamydia is present.

Why do similar symptoms not confirm chlamydia?

Gonorrhea, non-gonococcal urethritis (NGU) caused by other bacteria, and *Mycoplasma genitalium* can all produce the same discharge and burning that chlamydia causes. Clinicians cannot distinguish between them based on symptoms alone. A NAAT (nucleic acid amplification test) on a urine sample — or a urethral, rectal, or throat swab, depending on the type of sexual exposure — is needed to confirm the diagnosis 1Ref 1Workowski KA, Bachmann LH, Chan PA, Johnston CM, Muzny CA, Park I, Reno H, Zenilman JM, Bolan GA (2021).Sexually Transmitted Infections Treatment Guidelines, 2021.Clinical presentation of chlamydia in men, site-specific testing approach, treatment regimens, partner notification, retesting recommendations, epididymitis and reactive arthritis as complications, and MSM screening frequency2Ref 2US Preventive Services Task Force; Davidson KW, Barry MJ, Mangione CM, et al. (2021).Screening for Chlamydia and Gonorrhea: US Preventive Services Task Force Recommendation Statement.Annual screening recommendation for sexually active people under 25, and for those with new or multiple partners, regardless of symptoms.

Chlamydia and gonorrhea frequently co-occur, so both are routinely tested at the same time. If either is confirmed, a clinician will typically assess for the other and for syphilis as well.

What can happen if chlamydia goes untreated?

Left untreated, chlamydia can spread to the epididymis — the coiled tube behind each testicle — causing epididymitis: noticeable testicular pain, swelling, and tenderness that itself requires antibiotic treatment. In less common cases, untreated chlamydia has been associated with reduced sperm motility and effects on male fertility over time 1Ref 1Workowski KA, Bachmann LH, Chan PA, Johnston CM, Muzny CA, Park I, Reno H, Zenilman JM, Bolan GA (2021).Sexually Transmitted Infections Treatment Guidelines, 2021.Clinical presentation of chlamydia in men, site-specific testing approach, treatment regimens, partner notification, retesting recommendations, epididymitis and reactive arthritis as complications, and MSM screening frequency.

Reactive arthritis — joint pain and swelling that follows a urogenital infection — is a rare but recognized complication of untreated chlamydia in men 1Ref 1Workowski KA, Bachmann LH, Chan PA, Johnston CM, Muzny CA, Park I, Reno H, Zenilman JM, Bolan GA (2021).Sexually Transmitted Infections Treatment Guidelines, 2021.Clinical presentation of chlamydia in men, site-specific testing approach, treatment regimens, partner notification, retesting recommendations, epididymitis and reactive arthritis as complications, and MSM screening frequency. These complications are preventable when the infection is caught and treated early.

Getting tested and treated

A urine sample (the first portion of the urine stream) is the most common collection method for chlamydia testing in men. If oral or anal sex occurred, swabs of those sites should be added because a urine test alone would miss infections at those locations 1Ref 1Workowski KA, Bachmann LH, Chan PA, Johnston CM, Muzny CA, Park I, Reno H, Zenilman JM, Bolan GA (2021).Sexually Transmitted Infections Treatment Guidelines, 2021.Clinical presentation of chlamydia in men, site-specific testing approach, treatment regimens, partner notification, retesting recommendations, epididymitis and reactive arthritis as complications, and MSM screening frequency.

Chlamydia is treated with a short antibiotic course prescribed by a clinician. The right regimen depends on your history, allergies, and whether co-infection with other organisms is suspected.

During treatment: - Complete the full antibiotic course even if symptoms improve quickly - Avoid sex until both you and any recent partners have finished treatment - Notify partners so they can be tested and treated — reinfection is likely if an untreated partner remains - Retesting three months after treatment is recommended by many guidelines to catch reinfection 1Ref 1Workowski KA, Bachmann LH, Chan PA, Johnston CM, Muzny CA, Park I, Reno H, Zenilman JM, Bolan GA (2021).Sexually Transmitted Infections Treatment Guidelines, 2021.Clinical presentation of chlamydia in men, site-specific testing approach, treatment regimens, partner notification, retesting recommendations, epididymitis and reactive arthritis as complications, and MSM screening frequency

Screening schedule and ongoing prevention

Annual chlamydia screening is recommended for all sexually active people under 25, as well as for older adults with new or multiple partners, regardless of symptoms 2Ref 2US Preventive Services Task Force; Davidson KW, Barry MJ, Mangione CM, et al. (2021).Screening for Chlamydia and Gonorrhea: US Preventive Services Task Force Recommendation Statement.Annual screening recommendation for sexually active people under 25, and for those with new or multiple partners, regardless of symptoms. Men who have sex with men (MSM) should be screened at least annually at all anatomic sites of exposure — urethra, rectum, and pharynx — and more frequently (every three to six months) if at elevated risk 1Ref 1Workowski KA, Bachmann LH, Chan PA, Johnston CM, Muzny CA, Park I, Reno H, Zenilman JM, Bolan GA (2021).Sexually Transmitted Infections Treatment Guidelines, 2021.Clinical presentation of chlamydia in men, site-specific testing approach, treatment regimens, partner notification, retesting recommendations, epididymitis and reactive arthritis as complications, and MSM screening frequency.

Consistent, correct condom use meaningfully reduces the risk of chlamydia transmission. Knowing a partner's STI status through recent testing is a complementary prevention strategy. Because chlamydia is typically asymptomatic, routine testing is the cornerstone of prevention in sexually active people.