I think Butch has an ingrown claw. I clip his claws pretty regularly, but I was looking at them last night and his middle claw has become very thick and dark and is curled around almost back into his paw. He is a black cat with dark claws, so I usually only clip the sharp tip off. This thick claw is too blunt and does not have a sharp tip, and it is so dark I cannot see where to clip it. I hope the vet will be able to easily do something about this. Does anyone else have any experience with this?