hmmm... why did they remove her anal sacs? The sacs should be cleaned every time they are groomed.. about every 6 weeks. Either the groomer can do it or the vet. This is very common, but I have never heard of them removing them unless they are severely infected.
It's possible there is nerve damage or she is itching a surgical scar.
It's possible there is nerve damage or she is itching a surgical scar.