Kagawa Rosai Hospital, operated by the Japan Organization for Occupational Health and Safety, is a key regional medical center located in Jonan-cho, Marugame City, Kagawa Prefecture. The hospital specializes in occupational health services with a focus on cancer treatment and support for balancing work and medical care. It is designated as a disaster base hospital, playing an essential role in the regional healthcare system. The hospital primarily provides internal medicine services, with outpatient reception on weekdays from 9:00 AM to 3:30 PM. New patient registration is from 8:15 AM to 11:00 AM, and returning patients from 8:15 AM to 11:30 AM. The hospital is closed on Saturdays, Sundays, national holidays, and during the year-end/New Year period from December 29 to January 3. Payment options include credit cards, debit cards, and electronic payments. The facility features a parking lot and barrier-free access, ensuring accessibility for all visitors. Hospital visiting hours are from 2:00 PM to 5:00 PM, with a maximum of two visitors per day for up to 30 minutes. The hospital provides appropriate medical care tailored to each patient's needs under this structured management system.