Urethral Stenosis

What is stenosis (narrowing) of the urethra? The urethra is a tube that drains urine from the urethra. In men, it has 4 parts: the prostatic urethra (where the prostate is), the membranous urethra (where the urethral sphincter is), the bulbar urethra and the penile urethra. Any of these places is susceptible to...