<prompt> Most common site of urethral carcinoma in men is:Penile urethraBulbomembranous urethraProstatic urethraFossa nevicularis  <response>: The bulbomembranous urethra is involved most frequently, accounting for 60 of tumors, followed by the penile urethra 30 and the prostatic urethra 10.- Campbell-Walsh Urology 9th ed. Chapter 32Carcinoma of the male urethra is rare.Etiologic factors include chronic inflammation due to a history of frequent sexually transmitted diseases, urethritis, and urethral stricture, and there is likely to be a causal role for human papillomavirus 16 in squamous cell carcinoma of the urethra.The most common presenting symptoms are urethral bleeding, a palpable urethral mass, and obstructive voiding symptoms.Most common site is:bulbomembranous urethra 60penile urethra 30prostatic urethra 10.Most common histological subtype is:squamous cell carcinoma 85transitional cell carcinoma 15. 