He arrived by helicopter at Walter Reed National Military Medical Center outside Washington on Tuesday afternoon and stayed for about 90 minutes before returning to the White House.
The president told reporters at the Capitol earlier Tuesday that his wife, Melania, is "doing really really well" but did not comment further on her condition.
Melania has been admitted to Walter Reed National Military Medical Center for a "benign" kidney condition.
Two urologists who have no personal knowledge of Mrs. Trump's condition said the most likely explanation for the procedure is a kind of noncancerous kidney tumor called an angiomyolipoma. The statement conveyed, "The First Lady looks forward to a full recovery so she can continue her work on behalf of children everywhere". "Thank you to all of the well-wishers!"
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President Donald Trump had visited her on Monday, posting on Twitter and saying "Successful procedure, she is in good spirits".
An embolization is a minimally invasive treatment that blocks one or more blood vessels or abnormal vascular channels. Vice President Mike Pence, however, said in a speech Monday night that the procedure was "long-planned". He said he expected the first lady back home at the White House before the end of the week.
The president visited her on Monday evening and tweeted that the procedure was "successful" and that his wife was in "good spirits". In late April, she hosted her first state dinner in honor of French President Emmanuel Macron and his wife, Brigitte, and attended the funeral of former first lady Barbara Bush in Houston.
Trump tweeted Tuesday that his wife "will be leaving hospital in 2 or 3 days".