A medical encyclopaedia is a comprehensive written compendium that holds information about diseases, medical conditions, tests, symptoms, injuries, and surgeries. It may contain an extensive gallery of medicine-related photographs and illustrations. A medical encyclopaedia provides information to readers about health questions. It may also contain some information about the history of diseases, the development of medical technology uses to detect diseases in its early phase. A licensed physician should be consulted for diagnosis and treatment of any and all medical conditions. Source: Wikipedia (en)