Your dog should visit a veterinarian at least once a year and more frequently as they age or if they have special medical needs. These frequent checkups play a significant role in the 'prevention is better than cure approach. So don't put off scheduling a consultation simply because your dog appears fit and healthy to you.  Another advantage of these yearly check-ups is that they train your dog to attend the vet's office when they are healthy. If not, they may develop a fear of going to the vet, connecting their visits with unpleasant times or stressful situations.