As I am bowel incontinent, I completely shave my genitals and diaper area once a week. I use the Phillips Body Groomer Pro which was designed specifically for this purpose. I began this to make cleanup and odor control following a bowel accident easier. It also makes it easier to apply and remove diaper rash cream. As my urologist has prescribed a condom catheter I now have even more reason to continue the practice.
Shaving the sensitive skin of the scrotum requires care in order to avoid painful nicks.
I found a pre-shave lotion to be essential as well as a no-alcohol aftershave lotion.--John