A personal health record (PHR) is an electronic record (online or on portable media) of an individual’s health information. It is generally thought of as belonging to and managed by the individual. Information that goes into a PHR may come from both individuals and their health care providers. It ideally creates a complete, dynamic, and up-to-date health record. Data elements would include personal and demographic information, allergies, medications, immunizations, and diagnostic and treatment records.