(CNN) First lady Melania Trump isn't accompanying the President to Camp David this weekend, marking the 22nd day since she was last seen publicly.

President Donald Trump is expected to depart the White House Friday afternoon for a weekend at the presidential retreat in Maryland. The first lady, meanwhile, is staying put at the White House this weekend.

On May 14, she was checked into Walter Reed National Military Medical Center for what her spokeswoman Stephanie Grisham described in a news release as "an embolization procedure to treat a benign kidney condition."

The procedure was "successful and there were no complications," per Grisham, but Trump stayed in the hospital for nearly a week.

She has not been seen publicly since the early hours of May 10 , when she joined the President at Andrews Air Force Base to welcome three American detainees home from North Korea. She has, however, posted on social media multiple times since the procedure.

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