I got steriled a few years ago. I have two pieces of advice for you, SteveDave.
1. If you're having lasered nards, shave all around your groin and especially the tops of your thighs as they put an adhesive earthing strip there. When the nurse ripped that fucker off it was the most pain I had ever felt in my life.
2. When you get home and Mrs SteveDave asks to look at your stitches, make sure you keep a firm hand on the waistband of the jockstrap when you pull it down. Otherwise, when it slides off your fingers and twangs right onto your sensitive, wounded love blobs at the point of incision, you will fall sobbing to the floor, your vision blurred by flashing stars. A bag of frozen peas will have to be administered to the area along with many stuff drinks to get you through the trauma.