Anatomy before and after penile inversion
During a penile inversion your surgeon will make an incision in the area between your rectum and your urethra and prostate. This forms a tunnel that becomes your new vagina. The surgeon lines the inside of the tunnel with skin from the scrotum, penis or both. If you don't have enough penile or scrotal skin, your surgeon might take skin from your thighs, abdomen or another area of your body and use it for the new vagina as well.