I don't know if it's normal for everyone, but it was for me. I had my surgery 13 years ago. Eventually, some of the numbness goes away, but it there will always be some numbness. I think the skin itself (the nerves there will heal), but they probably cut through a few nerves when they opened you up, and you may never have full feeling back. My numbness is on the actual scar (under the skin and its nerves), fanned out near the base of my scar, and were my drainage tube was.