Asked whether or not his wife had been placed on any kind of transplant list, Crown Prince Haakon replied: ‘It’s up to the doctors. It’s a medical question, so they’re the ones who decide when it should happen, when it’s right. But I think she’s gotten a lot worse lately, unfortunately.’
In April, Haakon told the press that Crown Princess Mette-Marit found it ‘difficult to go out’. She has worn an oxygen cannula during a number of recent royal duties, including to celebrate Constitution Day with King Harald, Queen Sonja, and her son, Prince Sverre Magnus. During the engagement, the Crown Princess was provided with a chair to sit down when she grew too fatigued to stand.

At a recent engagement to mark Constitution Day, the future Queen of Norway wore an oxygen cannula as a result of her pulmonary fibrosis
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‘I live with a serious illness, and it is what characterises my everyday life now. It is what determines whether I can even stand in my role or not, she told NRK during an interview in March.
News of the Princess’s health condition was first made public in 2018 when the royal released a statement saying that the condition ‘meant her working capacity would vary’ to accommodate treatment. ‘For a number of years, I have had health challenges on a regular basis, and now we know more about what is involved,’ she said.