Pope Francis has appeared at his window of the Gemelli hospital in Rome and offered a blessing for the first time since being admitted on February 14, BBC reported.
The 88-year-old pontiff was discharged minutes later and doctors say he will need at least two months of rest at the Vatican.
During the past five weeks, Pope presented "two very critical episodes" where his "life was in danger", Dr Sergio Alfieri, one of the doctors treating the Pope, said.
Pope Francis was never intubated and always remained alert and oriented, Dr Alfieri said. Even though the Pope is not completely healed, he no longer has pneumonia and will return to work as soon as possible, if the trend continues, doctors say.
A crowd of people gathered outside the hospital on Sunday, waiting for the Pope to appear.
The Pope had only previously been seen by the public once since he was admitted to hospital, in a photograph released by the Vatican last week, which showed him praying in a hospital chapel.
Earlier this month, an audio recording of Pope Francis was played in St Peter's Square in Vatican City.
His voice was breathless as he thanked the Catholic faithful for their prayers.
Pope Francis has spent 12 years as leader of the Roman Catholic Church.
He has suffered a number of health issues throughout his life, including having part of one of his lungs removed at age 21, making him more prone to infections.
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