By the bye, prosthetic testes have been used in human males for many of the same reasons given for canine males, which in the latter case makes no sense whatsoever, especially the "masculine pride" bit.
At some stage in men's lives, many would opt for prosthetics (or just no testes), whether or not the real McCoy(s) had to be removed for health reasons, if only to never again be a "star" on American's Funniest Home Videos, getting a whack or a knee or a football or ... to the groin (ie, no more excruciating pain, doubling over, rolling on the ground, vomiting, ...). But then again some masochists might enjoy it. Whatever turns your crank.
However, I suspect that ethical surgeons would not accept the procedure on an elective basis. But who knows? Surgical penis lengthening is indeed practiced on such a basis.
