A Veterinarian is a specialized type of doctor. Veterinarians care for the health of animals and work to improve their health. They diagnose, treat, and research medical conditions and diseases of pets, livestock, and other animals. They are a licensed doctor of animal health who has being trained to care and provides variety of medical equipment, including surgical tools and x-ray and ultrasound machines to care for sick and injured animals. Veterinarians also involved in a general practice, treating all types of animals; they are specialized in a specific group of animals such as companion animals,livestocks,zoo animals or may specialize in a narrow medical discipline such as surgery,dermatology