Where is Melania Trump? US First Lady responds to conspiracy theories about her absence

US First Lady Melania Trump hasn’t been seen in public for nearly three weeks and speculation about her lengthy absence was mounting online.

To shut down the theories about her whereabouts, Melania has confirmed that she is indeed still at the White House.

She tweeted: “I see the media is working overtime speculating where I am & what I'm doing. Rest assured, I'm here at the @WhiteHouse w my family, feeling great, & working hard on behalf of children & the American people!”

Melania’s last public appearance was 21 days ago on May 10, when she joined her husband to welcome three Americans who had been detained in North Korea back to the US.

On May 14, she underwent kidney surgery at Walter Reed National Military medical centre.

She remained at the medical centre for the remainder of the week to recover and her communications director, Stephanie Grisham, said “there were no complications”.

On Wednesday, Grisham told Business Insider that the First Lady “is doing great” despite her long absence from the public eye.

However, official statements did not stop the stream of conspiracy theories about her absence, suggesting that she may have undergone a more serious medical procedure or fled back to New York after her surgery.

Grisham told Politico that the White House “deals with conspiracy theories all the time” and reiterated that “she was hospitalised for almost a week and is now home recovering”.

At the end of June, Melania will attend a summer picnic for members of Congress and their families.