Medical databases are organized collections of health-related information that help healthcare professionals and researchers access and analyze data. These databases can include patient records, clinical trial results, and medical literature, making it easier to track diseases, treatments, and outcomes. They play a crucial role in improving patient care and advancing medical research. By using medical databases, professionals can identify trends, evaluate the effectiveness of treatments, and ensure that patients receive the best possible care based on the latest evidence. Examples of such databases include PubMed, ClinicalTrials.gov, and HealthData.gov.