How would it change the dynamics of the British royal family?

2:27

(CNN) --

The Prince and Princess of Wales expressed their gratitude for the outpouring of support they have received from the public following the announcement that Catherine, Princess of Wales, has cancer.

"The Prince and Princess are hugely touched by the kind messages from people here in the UK, across the Commonwealth and around the world in response to Her Royal Highness's message. They are very touched by the warmth and support from the public and are grateful for their understanding of their request for privacy at this time," a Kensington Palace spokesperson said on Saturday.

The princess, known as Kate, described her diagnosis as a "huge shock" in a video posted on social media.

• This is what we know about Kate's cancer diagnosis and her health status

The news comes two months after the princess withdrew from public life after undergoing surgery for a non-cancerous abdominal condition, as reported by Kensington Palace at the time.

Since then, Catherine has faced strong speculation about her health.

"In January I had an abdominal operation in London and at the time it was thought not to be cancerous," said Catherine, 42, married to the heir to the British throne, Prince William.

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"The operation was a success. However, post-operative tests revealed that there was cancer. Therefore, my medical team advised me to undergo preventive chemotherapy treatment and I am now in the early stages of that treatment."

The princess began preventive chemotherapy in late February, a royal source told CNN, adding that Kate was expected to return to official duties after Easter, but will now postpone work until her medical team gives her the OK. approval.

Kensington Palace is not expected to reveal further medical details, such as the type of cancer or what stage it is in.

Wale's princess