Keeping your dog healthy is one of your most important tasks as a dog owner. In partnership with your veterinarian, you can take steps to prevent health problems altogether or to recognize them before they become serious. The best way to do this is to watch for signs of good health as well as signs of illness, to know your dog's normal appetite and habits, and to schedule regular veterinary exams. Preventive health care also includes regular vaccinations and spay/neuter surgery for dogs that aren't used for breeding.