Princess Kate's cancer news draws support from King Charles and other leaders

The first lady added “We love you” to X's post and signed it “Jill.”

Kate, Princess of Wales, said on Friday that she is in the early stages of “preventive chemotherapy” for cancer detected after abdominal surgery in January.

Kate did not say what type of cancer doctors found or how advanced it was. But cancer doctors say it's very common for prophylactic, or more specifically “adjuvant” chemotherapy, to be given after surgery in which cancer is found.

“It's almost like insurance,” says Dr. Andrea Selczek, a gastrointestinal oncologist at Memorial Sloan Kettering Cancer Center in New York City. “The patient had surgery to remove all visible cancer. Then chemotherapy was given to eliminate or eliminate cells that may remain in the body but are too small to see. I will try.”

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French President Emmanuel Macron said: “During this difficult time that you are all experiencing, Brigitte and I wish you a full recovery.” Xadded, “Your strength and resilience is an inspiration to us all.”

In an Instagram post featuring Duchess Kate and her brother James Middleton's childhood, Middleton said: “Over the years we have climbed many mountains together. I'm going to climb ⛰️❤️,” she wrote.

A statement on the Wimbledon

“We wish the Princess of Wales a speedy full recovery,” the statement added.

“Sending love and prayers to you and your family,” Ivanka Trump said in a comment on the Prince and Princess of Wales' Instagram post featuring Kate's cancer treatment announcement.

Prince Harry and Duchess Meghan said in a statement: “We wish Kate and her family health and healing, and hope that they can spend their time privately and peacefully.”

NBC News' Molly Hunter details why Princess Kate may have waited so long to reveal that she was undergoing cancer treatment.

First, Duchess Kate announced in January that she was scheduled for major abdominal surgery, after which she would need time to recover.

Second, she is processing the news of her cancer diagnosis with her husband, Prince William, as the couple come to terms with what this means for the healthy 42-year-old.

And finally, and perhaps most importantly, Kate is waiting for the right moment to tell her young children about her situation, make them understand, and reassure them that they are and will be okay. Ta. Remarkably, Kate wanted her children to hear news from her rather than media reports and gossip.