Medical surveillance is the systematic monitoring of individuals for changes in their health status that may be attributed to exposure to workplace hazards. It involves the collection and analysis of health-related data to detect and prevent occupational illnesses and injuries. Medical surveillance is a key component of occupational health programs and is essential for protecting workers' health and safety in various industries. This research area focuses on developing and implementing effective surveillance systems to monitor and assess the health of workers, identify potential health risks, and facilitate early intervention and prevention measures.