"The First Lady looks forward to a full recovery so she can continue her work on behalf of children everywhere," it said.
An embolisation is a minimally invasive treatment that blocks one or more blood vessels or abnormal vascular channels.
"She's doing great. She's in good spirits," Stephanie Grisham told the Post.
But once the East Wing announced her hospital stay, the President boarded Marine One two hours later to visit his wife.
"Heading over to Walter Reed Medical Center to see our great First Lady, Melania," Trump tweeted. "Successful procedure, she is in good spirits. Thank you to all of the well-wishers!"
Earlier on Monday, Trump kept a light schedule with no public events and was planning to visit his wife.
The East Wing keeping her medical condition private until after the procedure was nothing unusual, the Post said.
She largely stayed away from the campaign trail during her husband's 2016 historic run for the White House and has only of late taken on a more public role.
(This story has not been edited by Business Standard staff and is auto-generated from a syndicated feed.)