Jill Biden, the First Lady of the United States, underwent a procedure to treat an injury she suffered during her trip to Hawaii last week.

Dr. Biden’s spokesperson said that she was taking a stroll on the beach when an object “became lodged” into her foot. She was treated at Walter Reed National Military Medical Center in Maryland on July 29.

The full statement said, “Last weekend, prior to her two official events in Hawaii, the first lady stepped on an object on the beach which became lodged in her left foot. She will undergo a procedure today at Walter Reed National Military Medical Center to remove the object. The president will join her.”

Dr. Biden was coming back from Japan – where she attended the Opening Ceremony of the 2020 Tokyo Olympics on July 23 – and stopped in Hawaii to meet with military families and encourage people to get vaccinated against COVID-19.

In a letter written by Dr. Biden to the competitors of Team USA, she wrote in part, “Your entire nation is cheering you on and we are grateful for what you’ve given us: the chance to come together in common awe and appreciation for your accomplishments and the shared joy of rooting for our country on the edge of our seats.”

In April, the First Lady underwent what the White House referred to as a “common medical procedure.” Dr. Biden “tolerated the procedure well,” said communication director Elizabeth Alexander at the time.

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