More clinical tests were being performed on the 88-year-old pope, who had part of one lung removed as a young man.

Pope Francis remains in critical condition, blood tests show early kidney failure but he is alert and 'well oriented.

Fox News senior medical analyst Dr. Marc Siegel joins 'Fox News Live' to discuss the current state of Pope Francis after suffering a respiratory emergency.

Francis, 88, has been hospitalized since Feb. 14. He is battling a respiratory infection and pneumonia in both lungs.

While the Vatican has detailed laws and rituals to ensure the transfer of power when a pope dies or resigns, they do not ...

The Vatican said that the Pope’s prognosis remains guarded because of the "complexity" of his clinical condition.

Pope Francis spent his 10th day in hospital Sunday as Catholics around the world prayed for his recovery, the day after the ...

The Pope is resting in hospital after a "tranquil" night, the Vatican says, as he thanks doctors and supporters in a written ...

The Vatican issued a medical update saying Pope Francis was "not out of danger." He was receiving "high-flow" oxygen.

Pope Francis is fighting for his life as his pneumonia battle continues, these are the men who are most likely to replace him ...

As Pope Francis undergoes treatment for double pneumonia, many are looking ahead to the process of selecting his successor ...

Francis's continued hospitalisation has sparked huge concern about his health but also speculation about whether he might step down.