A personal health record (PHR) is an electronic application that allows patients to maintain and manage their health information privately. A PHR contains a patient's medical history and health data, such as lab results, that can be accessed online. PHRs can be paper-based, computer-based, web-based, or accessible through portable devices. PHRs provide benefits like improving patient engagement, coordinating information from multiple healthcare providers, ensuring information is available during emergencies, reducing administrative costs, encouraging family health management, enhancing patient-provider communication, and allowing patients to track and manage their health.