If the limping lasts longer than a day or two, if it suddenly gets much worse, if your dog seems in pain or if it goes away and then comes back from time to time, you should take your dog to the vet. read more
hip displaisia it happens in dogs, cats and people, or it could be arthritis, animals back legs give out before they are ready to pass, you should take the yorkie to a vet to get him or her checked out. read more