Question

A male patient came to OPD with white discharge from urethra [Image Shown]. What is the most probable organism involved?

• A. Nisseria gonorrhoeae
• B. Haemophilus ducreyi
• C. Calymmatobacterium granulomatis
• D. Treponema pallidum

Hint:

Think about the most common sexually transmitted organism causing purulent urethral discharge in males.

Answer 1

The Correct Option is A

Step 1: Analyze the clinical scenario.
The patient is a male presenting with white (purulent) urethral discharge. This is a classic presentation of urethritis. The image shows urethral discharge from the penile meatus.

Step 2: Identify the most probable organism.
Neisseria gonorrhoeae is the most common cause of urethritis presenting with profuse, purulent or white urethral discharge in males. Males are typically symptomatic (presenting with discharge, dysuria), while females often remain asymptomatic and may act as reservoirs.

Step 3: Differentiate from other options.
- Haemophilus ducreyi: causes chancroid (painful genital ulcer with soft, non-indurated base), not urethral discharge.
- Calymmatobacterium granulomatis (now Klebsiella granulomatis): causes granuloma inguinale (painless, progressive, beefy-red ulcer) -- not associated with urethral discharge.
- Treponema pallidum: causes syphilis -- primary syphilis presents with a painless indurated chancre, not urethral discharge.

Step 4: Conclusion.
Neisseria gonorrhoeae is responsible for gonococcal urethritis, the most common sexually transmitted infection presenting as urethral discharge in males.