for starters cumming back into your bladder is a minor detail...speaking from experience..I am not a cancer patient but i was pun into a wheelchair at the ripe old age of 18.i amd 32 now.I had my whole life ahead of me then one night in a split second boom, crippled for life...so i say to you there are worse problem than a little surgery pain and not being able to father children the old fasion way..if you truly want a child and family then i say to you get over yourself and do what your gonna do...i got married 5 years ago..we now have a beautiful baby girl and life is grand...i look back at the day's i stuck my pistol in my mouth and think what the hell was i thinking.....nothing personal against anyone...not tring to step on toes just my opion