Medical records is a structured repository of patient-specific health information, studied academically as a fundamental data source and system within health informatics, clinical research, and public health. This concept investigates the generation, management, quality, privacy, and utilization of longitudinal health data, characterized by its complexity, sensitivity, and diverse formats. Its significance lies in serving as the primary documentation for clinical care, a critical resource for epidemiological studies and healthcare management, and a subject of research concerning data science methodologies, interoperability, and ethical considerations.