The majority of men who develop gonorrhoea in the penile urethra will notice two main symptoms.

This stoma (opening) is much larger than the original penile urethra making it unlikely for the animal to obstruct in the future.

Vadmal MS, Steckel J, Teichberg S, et al.: Primary neuroendocrine carcinoma of the penile urethra.

The bulbar urethra is a segment of the male urethra that is in between the penile urethra and the membrano-prostatic urethra that typically has a robust blood supply.

Prenatal testosterone, converted in the genital skin to dihydrotestosterone, causes migration of skin fibroblasts to fully enclose the urethral groove in fetal males, normally resulting in an enclosed penile urethra by the second trimester of pregnancy.