Bush, 90, was taken to the hospital Tuesday night as a precautionary measure after experiencing shortness of breath.
On Christmas Day, the former president received visits from his wife, Barbara, son Neil and daughter-in-law Maria Bush, McGrath said in a previous statement.
McGrath said Bush “asked that his sincere wishes for a very Merry Christmas be extended to one and all.”
Bush, a Republican, served as the nation’s 41st president and is the father of the 43rd president, George W. Bush.
While suffering from a form of Parkinson’s disease that causes him to use a wheelchair or a scooter, the elder Bush has been active recently. He appeared last month with his son George at an event to unveil the new book,”