First lady Melania Trump said Wednesday she is "feeling great" and on the mend after undergoing surgery earlier this week.

Trump posted this tweet regarding her recovery from surgery to treat a benign kidney condition:

A sincere thank you to Walter Reed Medical Unit @WRBethesda & to all who have send good wishes & prayers! I am feeling great & look forward to getting back home @WhiteHouse soon. — Melania Trump (@FLOTUS) May 16, 2018

The White House revealed Monday afternoon the first lady had undergone the procedure at Walter Reed Medical Center, also known as the Bethesda Naval Hospital. It is not entirely clear why she had the surgery.

Trump is expected to be hospitalized through this week.

President Donald Trump has visited his wife every day via a short helicopter ride from the White House to nearby Bethesda, Maryland.