Public figures across the USA political spectrum have offered words of support to Mrs Bush and her family. She is at her home in Houston with family members by her side, according to sources close to the Bush family.
"Following a current collection of hospitalizations, and after consulting her household and medical doctors, Mrs".
People are generally aware that Bush Sr. suffers from a form of Parkinson's disease that has him in a wheelchair; however, most were not aware of the former first lady's health problems, which started about two years ago.
She has been treated for decades for Graves' disease, which is a thyroid condition.
"She is surrounded by a household she adores, and appreciates the numerous type messages and particularly the prayers she is receiving", it continued.
Former first lady Barbara Bush is in failing health, a source close to the Bush family tells CNN. Barbara Bush joined Abigail Adams as the only woman in USA history to be the wife and mother of presidents.
Romer served as governor during the presidency of George H.W. Bush. And of her president son, she once said, "I may be the only mother in America who knows exactly what their child is up to all the time".
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During her time in the White House she played an active role in championing the cause of adult literacy among others.
The Bushes "live their lives always putting others first", said Maine Medical Center president Rich Petersen.
Support and prayers for the Bush family flowed in, including from House Minority Leader Nancy Pelosi and Nikki Haley, the USA ambassador to the United Nations.
She is the only woman to see her husband and son sworn in as US president. Another son, Jeb Bush, was governor of Florida and unsuccessfully ran for president in 2016. After he returned on leave, she dropped out of Smith College, and the two married in January 1945.
The Barbara Bush Foundation for Family Literacy has distributed tens of millions of dollars in grants. The candid admission only bolstered her common sense and down-to-earth public image.
Democratic US Representative for New York Sean Patrick Maloney said: "Barbara Bush was a graceful first lady who has dedicated her life to improving education and promoting literacy".
Bush is known for her white hair and her triple-strand fake pearl necklace. He was hospitalized in Houston in December 2014 for a couple of week for shortness of breath and spent Christmas 2012 in intensive take care of a bronchitis-related cough and different points.