this is a very touchy area with some breeders/owners but I would go ahead of have them removed during her spay. The back ones can get caught on things and pulled even more so than the front ones.
as for them not being removed, I can say that I got my Lacie from a very good breeder who did remove her front dewclaws, however they either did not notice or not did not check about back ones...my Lacie has double dewclaws on both back feet and they do cause her trouble. She can be seen hopping on three legs when the touch the ground. The claws also grown in a circle and make trimming very hard.
I also breed puppies so she has not been spayed, however if she should ever require to be put under for any reason, such as a c-section, I would have hers removed at that time.
Good luck with you decision. |