Disease presentation refers to the way in which a disease manifests itself in an individual, including the signs and symptoms that are exhibited. The presentation of a disease can vary widely depending on factors such as the type of disease, the individual's overall health and genetics, and any treatments they may be receiving. Understanding the presentation of a disease is crucial for accurate diagnosis and appropriate treatment. This research area focuses on studying and analyzing how different diseases present in various populations, how they progress over time, and how best to identify and manage them based on their specific presentations.