Norway's Crown Princess Mette-Marit underwent a successful lung transplant and is recovering at Oslo University Hospital Rikshospitalet, where she will remain admitted for several weeks. She was diagnosed with pulmonary fibrosis in 2018, a disease that causes lung scarring and reduces oxygen intake. According to gdelt, Oslo University Hospital stated in December 2025 that the time for a transplant was getting close, and doctors said her illness had worsened and that she would need a transplant as soon as possible. Arnt Fiane, Professor of Medicine at the University of Oslo and Head of the Heart and Lung Transplant Programme at Oslo University Hospital Rikshospitalet, stated that the transplant had been successful thus far and expressed gratitude to the team involved in planning and executing the procedure. Are Holm, Professor of Medicine at the University of Oslo and Senior Consultant and respiratory specialist, stated that routine post-transplant care includes medication adjustment, complication management, and rehabilitation. Prime Minister Jonas Gahr Støre praised Crown Princess Mette-Marit for speaking openly about her illness.