The US pop superstar, 65, spent time in intensive care with a "serious bacterial infection" which led to her rescheduling the North American leg of her Celebration Tour.
She opened the tour in October at The O2 in London before shows in the US, Canada and Mexico.
A year on from her health scare, she celebrated how far she has come with her recovery by sharing a selection of photos of her celebrating American Independence Day.
"Happy 4th of July!" the Queen of Pop wrote.
"A year ago today, I had just come home from the hospital after surviving a life-threatening illness.
"I could barely stand in my backyard holding one sparkler.
"I made a miraculous recovery and had an amazing year.
"Thank you God. Life is beautiful!"
In June 2023, Madonna postponed the original start date of her tour in Canada after her talent manager Guy Oseary announced that a "serious bacterial infection" led to a stay of several days in intensive care.
"It was a crazy year for me as well and I didn't think I was going to make it - neither did my doctors," Madonna said during the tour's first show in London.
"I forgot five days of my life or my death - I don't really know where I was.
"But the angels were protecting me and my children were there, and my children always save me every time."
The show was a celebration of her four-decade career, featuring more than 40 songs from her back catalogue, a host of extravagant outfits and a variety of theatrical stage set-ups.
She ended the tour in Brazil in May with a free concert which turned Rio de Janeiro's Copacabana beach into an enormous dancefloor for the night.
It was her first tour since her Madame X shows, which ended in 2020, although some performances were called off due to knee and hip injuries.
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