Morbidity burdens attributable to various illnesses and injuries among deployed active and reserve component members of the U.S. Armed Forces, 2025.

This annual summary utilizes data from the Theater Medical Data Store (TMDS) to document service member health care encounters during deployments to 4 theaters of operation, U.S. Africa Command, U.S. Central Command, U.S. Pacific Command, and U.S. Southern Command, where large concentrations of U.S. service members are deployed without access to permanent medical facilities. In 2025, musculoskeletal system conditions were the leading cause of in-theater medical care in U.S. Africa Command (AFRICOM), U.S. Central Command (CENTCOM), and U.S. Southern Command (SOUTHCOM), while in U.S. Pacific Command (PACOM) mental health disorders were the leading cause of medical care. This year's expanded analysis, including 4 combatant commands, of deployed service member health care, reveals that CENTCOM accounted for almost 90% of all in-theater medical encounters in 2025.