Why would a dog's claws fall off?
Puppies claws will fall out to make room for their adult ones
and the same goes for their teeth. Adult dogs can lose a "dew claw"
which is behind the foot. Sometimes dogs need to have Dew Claw
removed by their vet because they can get caught on things and
cause infection. It's best to take your dog to the vets to be sure
everything is OK.