Treatment of Urethritis in a 30-Year-Old Male
For a 30-year-old male with urethritis, treat immediately with either azithromycin 1g orally as a single dose OR doxycycline 100mg orally twice daily for 7 days, after confirming urethritis by objective criteria. 1, 2
Diagnostic Confirmation Before Treatment
Before initiating therapy, confirm urethritis by documenting at least one of the following objective criteria:
- Mucopurulent or purulent urethral discharge on examination 3, 1
- Positive leukocyte esterase test on first-void urine 3, 1
- ≥10 white blood cells per high-power field on microscopic examination of first-void urine sediment 3, 1
- ≥5 white blood cells per oil immersion field on Gram stain of urethral secretions 3
If none of these criteria are present, defer treatment and test for N. gonorrhoeae and C. trachomatis using nucleic acid amplification tests, then treat only if positive. 3, 4
First-Line Treatment Regimens
Once urethritis is confirmed, choose one of these CDC-recommended first-line options:
- Azithromycin 1g orally as a single dose - particularly effective against Mycoplasma genitalium and offers the advantage of directly observed single-dose therapy 3, 1, 5
- Doxycycline 100mg orally twice daily for 7 days - highly effective for chlamydial urethritis 3, 1, 6
Both regimens have equivalent efficacy for chlamydial urethritis, but azithromycin may be superior for M. genitalium infections. 3, 1 The single-dose azithromycin regimen improves compliance and allows for directly observed therapy. 3
Testing Strategy
- All patients with confirmed urethritis must be tested for both N. gonorrhoeae and C. trachomatis using nucleic acid amplification tests 3, 1
- Testing is strongly recommended because specific diagnosis enhances partner notification and compliance 3
- If gonococcal infection is documented or suspected, add treatment for gonorrhea (typically ceftriaxone) to the above regimens 7, 8
When to Treat Empirically Without Confirmation
Empiric treatment without documented urethritis is justified only in specific high-risk scenarios:
- Patients at high risk for infection who are unlikely to return for follow-up (e.g., adolescents with multiple partners) 3, 4
- These patients should receive treatment covering both gonorrhea and chlamydia 3, 4
- This represents a pragmatic exception to the general rule requiring objective confirmation 4
Partner Management (Critical Component)
- All sexual partners within the preceding 60 days must be referred for evaluation and treatment 3, 1
- Partners should receive treatment effective against chlamydia regardless of whether a specific pathogen is identified in the index patient 1, 2
- Both patient and partners must abstain from sexual intercourse until 7 days after therapy is initiated and symptoms have resolved 3, 1
Management of Persistent or Recurrent Urethritis
If symptoms persist or recur after initial treatment:
- Re-confirm urethritis with objective criteria before retreating - symptoms alone are insufficient 3, 1
- First, rule out non-compliance with initial treatment or re-exposure to untreated partner 3, 1
- If compliance was adequate and re-exposure excluded, treat with: Metronidazole 2g orally as a single dose PLUS azithromycin 1g orally as a single dose (if not used initially) 1, 2
- Some cases of recurrent urethritis after doxycycline may be caused by tetracycline-resistant U. urealyticum 3
Follow-Up Recommendations
- Patients should return for evaluation only if symptoms persist or recur after completing therapy 3, 1
- Test-of-cure is not recommended for asymptomatic patients who received recommended treatment 1
- Consider repeat testing 3-6 months after treatment due to high reinfection rates 1, 2
- Patients should abstain from sexual intercourse until therapy is completed and symptoms have resolved 3
Additional Testing Considerations
- All patients diagnosed with a new STD should receive testing for other STDs, including syphilis and HIV 3, 1
- This is particularly important because antimicrobial agents used for urethritis may mask or delay symptoms of incubating syphilis 5
Common Pitfalls to Avoid
- Do not treat based on symptoms alone without objective evidence of urethritis, unless the patient meets high-risk criteria for empiric treatment 4, 1
- Do not retreat based on persistent symptoms alone without re-documenting urethritis with objective criteria 3
- Ensure nucleic acid amplification testing is performed rather than relying solely on urine microscopy, as these tests are more sensitive 4
- Do not forget partner treatment - failure to treat partners is a major cause of recurrent infection 3