Princess Kate Middleton announced she's been diagnosed with cancer in a video message.

The Princess of Wales, 42, has been undergoing preventative chemotherapy treatment after a planned abdominal surgery showed "cancer had been present." Kate did not elaborate on the form or extent of the cancer in her video.

Middleton gave the update on her health Friday after undergoing major surgery earlier this year.

"I wanted to take this opportunity to say thank you, personally, for all the wonderful messages of support and for your understanding whilst I have been recovering from surgery," Middleton said in the video recorded Wednesday.... Read More: FOX News