A timeline of Kate Middleton's health struggles, from a cancer diagnosis to remission

Kate joined the royal family for their annual walk from Sandringham in Norfolk, England, to attend a church service on Christmas Day.

The Princess of Wales walked with her children and husband to the Church of St. Mary Magdalene in one of her signature coatdresses, much like she did in years past.

Kensington Palace said in its statement that Kate would remain in the hospital, The London Clinic, for up to two weeks following the procedure.

"Her Royal Highness The Princess of Wales was admitted to hospital yesterday for planned abdominal surgery," the statement read. "The surgery was successful, and it is expected that she will remain in hospital for ten to fourteen days, before returning home to continue her recovery. Based on the current medical advice, she is unlikely to return to public duties until after Easter."

Kensington Palace provided no additional information about what procedure Kate underwent, though the palace told the Associated Press the princess didn't have cancer.

The statement also said Kate hoped "her personal medical information remains private" to help provide her children with "normality."

"Kensington Palace will, therefore, only provide updates on Her Royal Highness' progress when there is significant new information to share," the statement went on to say.

Prince William was photographed visiting Kate at the hospital the following day.

"The Princess of Wales has returned home to Windsor to continue her recovery from surgery," the statement shared on Instagram said. "She is making good progress."

William and Kate went on to thank the staff at The London Clinic in the statement, as well as those who sent them well wishes.

The same day, Buckingham Palace announced King Charles was returning home after having a procedure for a benign prostate enlargement.

Buckingham Palace said in a statement that "a separate issue of concern was noted" during the king's prostate procedure, and additional testing disclosed he had cancer. The palace didn't disclose what form of cancer he was diagnosed with, though they said it wasn't prostate cancer.

The statement also said that the king "commenced a schedule of regular treatments" and that although he would still be working from home, he would "postpone public-facing duties" per medical advice.

The palace didn't specify how long the king would forgo public-facing work at the time.

"His Majesty has chosen to share his diagnosis to prevent speculation and in the hope it may assist public understanding for all those around the world who are affected by cancer," the statement also said.

William paused his royal engagements amid Kate's surgery and recovery, returning to work on February 7, 2024, for an investiture ceremony at Windsor Castle.

The same day, he attended a gala raising money for the London Air Ambulance, and he thanked the public for their messages of support for Kate, Town & Country reported.

"I'd like to take this opportunity to say thank you, also, for the kind messages of support for Catherine and for my father, especially in recent days," he said, adding that "it means a great deal to us all."

He has attended a handful of public events since. The public was predicted to look to William in Charles and Kate's absences, as he represents the monarchy's future as heir to the throne.

"It's an opportunity for him to communicate on behalf of the royal family," Eric Schiffer, the chairman of Reputation Management Consultants, said.

In addition, the public generally responds more favorably to younger royals. Without Kate, Prince Harry, and Meghan Markle, William's youth could be a boon for the monarchy, as Kristen Meizner, a royal watcher, told BI.

"They are most focused on the royals when they are of courtship age, getting married, having babies, that kind of thing," she said. "They're not necessarily considered as dazzling or as exciting to the public when they're 60 or 70 or whatnot."

On February 9, 2024, the Daily Mail reported that Kate had joined her family at their home in Sandringham, Anmer Hall, for her children's half-term holiday.

The outlet also reported that her recovery was going well at the time.

Kate wasn't photographed during her trip from Windsor to Sandringham.

Although he wasn't taking on public-facing duties, King Charles was still photographed a few times following his cancer diagnosis and the beginning of his treatment.

On February 11, 2024, he and Queen Camilla were spotted going to church in Sandringham, and he was photographed meeting with then-Prime Minister Rishi Sunak on February 21 at Buckingham Palace.

On the other hand, Kate remained absent, as Kensington Palace released no photos or videos of her.

Typically, William and Kate have released statements as a pair since they got married.

But on February 20, 2024, Kensington Palace released a statement on only William's behalf regarding the conflict in Gaza, in which he said he remained "deeply concerned about the human cost of the conflict in the Middle East since the Hamas terrorist attack on 7 October."

"I, like so many others, want to see an end to the fighting as soon as possible," the statement said. "There is a desperate need for increased humanitarian support to Gaza."

William also said he continued "to cling to the hope that a brighter future can be found, and I refuse to give up on that."

In addition to speaking for only William, the statement had a "W" seal at the top rather than the crown featured on messages from the Prince and Princess of Wales as a unit.

On February 27, 2024, members of the royal family attended a service of thanksgiving for King Constantine of Greece, King Charles' second cousin and close companion. He was one of William's godfathers.

William was set to attend the event alongside Queen Camilla and other family members but missed the service because of a personal matter, Kensington Palace told Business Insider.

A palace representative also told BI that Kate was doing well, but they didn't elaborate on what caused William to miss the event.

Following his absence, chatter about Kate's prolonged absence from the public eye erupted on social media, with users speculating about why she hadn't been seen in months. The princess was trending on X, and thousands posted about her on TikTok. "Kate Middleton" was also sixth on Google's list of trending search terms on February 27, highlighting how high public interest got in her absence.

On February 29, 2024, Prince William resumed public duty, visiting the Western Marble Arch Synagogue to learn about the Holocaust Educational Trust, as Kensington Palace shared on Instagram.

He sat down with a Holocaust survivor, Renee Salt. Rebecca English, a royal editor for the Daily Mail, reported on X that during the conversation, he spoke on behalf of himself and Kate.

"Both Catherine and I are extremely concerned about the rise in antisemitism," English quoted the prince as saying to Salt. "That's why I'm here today to reassure you all that people do care and people do listen, and we can't let that go."

Kensington Palace also reiterated that Kate was "doing well" in a statement sent to BI on February 29.

"We gave guidance two days ago that The Princess of Wales continues to be doing well," the statement said. "As we have been clear since our initial statement in January, we shall not be providing a running commentary or providing daily updates."

On March 4, 2024, a sunglasses-clad Princess of Wales was seen riding in a car with her mother, Carole Middleton, in photos obtained by Backgrid and shared by TMZ.

According to TMZ, the pair were driving near Windsor Castle when they were photographed, and no other royals or security appeared to accompany them on the drive.

The sighting came as Queen Camilla announced she was taking a break from filling in for her husband at royal engagements until March 11.

On March 5, 2024, outlets like BBC News reported that Kate's name was included on tickets released online to The Colonel's Review, an event the British army hosts amid Trooping the Colour, on June 8. Kate was named the Colonel of The Irish Guards in December 2022, and the Colonel typically participates in the Review.

Many took her inclusion on the tickets as a sign she was on track to return to work in the summer. But then, the army quickly removed all references to Kate after the tickets were released because Kensington Palace had not confirmed she would attend.

A source close to the situation told Business Insider's Mikhaila Friel the army didn't get approval from Kensington Palace to include references to the princess in the tickets, leading to the confusion.

The palace didn't respond to a request for comment from BI on the matter.

March 10, 2024, was Mother's Day in the UK, and to commemorate the occasion, Kensington Palace released the first official portrait of Kate since Christmas.

In the photo, Kate sits in a chair surrounded by her children, who are all giggling. According to the caption they shared on social media alongside the image, William took the picture of his family in 2024, and the photo appeared to come directly from Kate, as she signed the caption, "C," which stands for Catherine.

"Thank you for your kind wishes and continued support over the last two months," she wrote. "Wishing everyone a Happy Mother's Day."

But shortly after it was released, people began to speculate the photo had been edited. Photo editor Patrick Witty told BI's Shubhangi Goel it was "astonishing" the palace released the photo at all because of issues in the image, pointing to areas where the picture is blurred and things that seemed to be added to the shot during the editing process, like a zipper on Kate's jacket.

On March 10, 2024, Reuters, the Associated Press, and the French organization Agence France-Presse sent kill notices for the picture, which means it is no longer available for distribution through their platforms.

Reuters said it removed the picture after a "post-publication review," while the AP said explicitly in its kill notice that it wouldn't distribute the photo because "it appears the source has manipulated the image. No replacement photo will be sent."

Kensington Palace has been accused of editing photos of the royals before, as was the case with the Waleses' 2023 Christmas card, but the photo released on March 10 was the first to be killed by photo agencies.

The palace did not respond to a request for comment on the editing controversy.

On March 11, 2024, Kate released a statement on social media addressing the controversy surrounding the photo, seemingly taking responsibility for the manipulated image.

"Like many amateur photographers, I do occasionally experiment with editing," she wrote on X. "I wanted to express my apologies for any confusion the family photograph we shared yesterday caused. I hope everyone celebrating had a very happy Mother's Day. C."

Notably, Kate signed the statement alone. Kensington Palace typically speaks on behalf of the couple as a unit, and the royals said in their initial post that William took the shot.

The statement didn't appear to convince royal watchers online. Kate was trending on X, and the edited image had been viewed over 72 million times on the platform.

A few hours after the princess posted on X, the Daily Mail released a photo of William and what appeared to be Kate in a car together leaving Windsor Castle.

In the shot, Kate is looking out of the window, so only her profile is visible. According to the outlet, Kate was going to "a private appointment," and William was en route to a Commonwealth Day service at Westminster Abbey.

William was photographed alongside Queen Camilla at the Commonwealth Day service after the photo of him and Kate was published.