Norwegian military personnel experienced unexplained nosebleeds at the Skjold garrison in Inner Troms. The incidents affected hundreds of soldiers over recent years. Defense research investigators conducted extensive examinations of barracks at Skjold in Målselv. They also studied facilities at Bardufoss/Rustad camp and Trondenes in Harstad. The research period spanned more than 18 months.
Project leader Frank Brundtland Steder from the Defense Research Institute revealed the findings. Dry cold air represents the primary cause of nosebleeds among soldiers. The investigation ruled out pollution, poor ventilation, mold, or hazardous water as contributing factors. Researchers combined objective indoor climate measurements with soldiers' personal experiences. This approach provided comprehensive understanding of the situation.
Military health services recommend good cleaning practices and sufficient ventilation. Removing dust sources can reduce such complaints. The military acknowledges soldiers deserve good and safe indoor environments. Follow-up actions will involve multiple defense authorities and government departments.
The mystery began with initial reports in January 2023. Approximately 150 soldiers reported nosebleeds without known cause during one month. Media coverage prompted military authorities to launch formal investigations. Researchers documented 200 nosebleed cases during the study period.
Skjold camp recorded 150 incidents while Bardufoss camp reported 41 cases among control groups. Most events occurred during daytime hours, particularly between 8 AM and 4 PM. January saw the highest reporting frequency. Soldiers attributed their nosebleeds to dry air (40%), breathing cold outdoor air (24%), dehydration (12%), and nose picking (8%).
Eighty-eight percent of affected personnel had no prior history of nosebleeds before military service. This pattern suggests environmental factors rather than individual medical conditions. The Norwegian military's response demonstrates how northern climate conditions impact personnel health. Military bases across Scandinavia face similar challenges with extreme winter conditions.
This situation highlights the practical difficulties of maintaining troop readiness in Arctic environments. The findings provide valuable insights for other cold-climate military operations worldwide. Proper humidity control and climate adaptation measures become essential for northern defense installations.