A veterinarian in Pickering is a person who treats animals and is a practitioner of veterinary medicine. Those working in clinical settings often practice medicine in a limited field such as pet medicine, which includes small animals such as dogs and cats. Veterinarians in Pickering may choose to specialize in medical disciplines such as surgery, dermatology or internal medicine, after post-graduate training and certification. Like physicians and animal therapists, veterinarians must make ethical decisions about their patients’ care.