Veterinary medicine is a challenging field. One significant difference between human and animal medicine is that veterinarians must be familiar with the anatomy and diseases of several different species. An appropriate treatment for one species might be ineffective or harmful if applied to another. Veterinarians must be proficient in both medicine and surgery, and be well versed in areas such as pediatrics, obstetrics, anesthesiology, plastic surgery, dentistry, dermatology, geriatrics, and orthopedics. They must deduce problems without sharing a single spoken word with the patient. Many veterinarians, therefore, are acute diagnosticians with top-notch powers of observation and intuition.