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

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 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, 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, he and Queen Camilla were spotted going to church in Sandringham, and he was photographed meeting with 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, 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, 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, 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, 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, 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 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, 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, Kate addressed the controversy surrounding the photo in a statement released on social media, seeming to take 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.

On March 17, The Sun reported that William and Kate were spotted shopping at a "farm shop" near Adelaide Cottage, their home on the grounds of Windsor Castle. But The Sun's coverage didn't include any images of the prince and princess.

Then, on March 18, TMZ and The Sun released a video of what appeared to be William and Kate walking through the market, holding shopping bags.

The video was grainy, and Kensington Palace did not respond to a request for comment from Business Insider on the matter.

On March 22, Kensington Palace uploaded a video of Kate speaking directly to a camera on its social media.

In the video, Kate said that her abdominal surgery in January was successful, but "tests after the operation found cancer had been present."

Her medical team recommended she "undergo a course of preventative chemotherapy" after reviewing the tests, as Kate said in the video. She began treatment in late February, according to a press release shared with BI.

The princess said that the diagnosis was a "shock" and that she and William "have been doing everything we can to process and manage this privately for the sake of our young family," adding that determining how to share the news with their children was difficult.

"As I have said to them, I am well and getting stronger every day by focusing on the things that will help me heal in my mind, body, and spirits," Kate said.

In the press release shared with BI, Kensington Palace said it would not be revealing what kind of cancer Kate had, nor what stage her cancer was.

The release also said Kate would return to work "when she is cleared to do so by her medical team."

In the video, Kate reiterated Kensington Palace's previous requests for privacy.

"We hope that you will understand that, as a family, we now need some time, space, and privacy while I complete my treatment," she said.

To celebrate their 13th anniversary, Kate and William shared a never-before-seen photo from their wedding on Instagram.

The caption on the post was simple, reading, "13 years ago today!"

Kensington Palace had not released any official updates, but on May 10, William said Kate was "doing well" when asked about her health in a video recorded by Sky News.

Kate became Colonel of the Irish Guards in 2022, inheriting the title from Prince William. As the Colonel, she's meant to oversee the Colonel's Review, a rehearsal for Trooping the Colour, the king's official birthday celebration. However, Kate was unable to attend this year.

The Irish Guards shared a letter from Kate on X, in which she apologized for missing the rehearsal.

"Being your Colonel remains a great honour, and I am very sorry that I am unable to take the salute at this year's Colonel's Review," she wrote. "Please pass my whole apologies to the Regiment, however I do hope that I am able to represent you all once again very soon."

On June 14, Kate announced in a post on Kensington Palace's official social-media accounts that she would attend Trooping the Colour. The event, which took place on June 15, marked Kate's first official appearance of the year and her first since publicly sharing her cancer diagnosis.

In the post, accompanied by a photograph of Kate taken at her home in Windsor, the princess wrote that she was making "good progress" with her chemotherapy treatment, adding that there were "good days and bad days."

"On those bad days you feel weak, tired and you have to give in to your body resting. But on the good days, when you feel stronger, you want to make the most of feeling well," she wrote.

Kate added that her treatment was ongoing but that she was starting to do "a little work from home" and hoped to be able to join other "public engagements over the summer."

"I am learning how to be patient, especially with uncertainty," she added. "Taking each day as it comes, listening to my body, and allowing myself to take this much needed time to heal."

"I'm looking forward to attending The King's Birthday Parade this weekend with my family," she wrote, adding that she is grateful for the public's "continued understanding" and support.

It was announced that King Charles would also attend his official birthday celebration, though he would ride in a carriage instead of on horseback.

During the parade, Kate rode in a carriage with George, Charlotte, and Louis, smiling and waving to the crowd.

She later watched the RAF flyover from Buckingham Palace's balcony alongside William, her children, and other senior members of the royal family, including King Charles.

William and Kate shared photos from Trooping the Colour on their official social-media accounts.

"A memorable day at The King's Birthday Parade," the caption of their post read. "From the Irish Guards Trooping their colour to seeing so many faces on the Mall, thank you for making it a day to remember."

About a month after Trooping the Colour, Kate took another step toward returning to her royal work by attending the Wimbledon Championships men's singles final.

Kate brought her daughter Charlotte, and the pair were photographed watching the match together. She also presented the winner, Carlos Alcaraz, with his trophy.

She said it was "great to be back at Wimbledon" in an Instagram post about the event.

Kate took to Instagram again on Monday to announce she was finished with chemotherapy in a video filmed by Will Warr.

The video showed clips of the Prince and Princess of Wales with their children and Kate's parents.

"As the summer comes to an end, I cannot tell you what a relief it is to have finally completed my chemotherapy treatment," Kate said in a voiceover that played in the video. "The last nine months have been incredibly tough for us as a family. Life as you know it can change in an instant and we have had to find a way to navigate the stormy waters and road unknown."

The Princess of Wales also shared a bit about her experience with cancer in her statement.

"The cancer journey is complex, scary and unpredictable for everyone, especially those closest to you," she said. "With humility, it also brings you face to face with your own vulnerabilities in a way you have never considered before, and with that, a new perspective on everything."

"This time has above all reminded William and me to reflect and be grateful for the simple yet important things in life, which so many of us often take for granted. Of simply loving and being loved," she added.

Although the princess said she is "looking forward to being back at work and undertaking a few more public engagements in the coming months when I can," she made clear that her health is still her priority.

"Doing what I can to stay cancer free is now my focus," she said. "Although I have finished chemotherapy, my path to healing and full recovery is long and I must continue to take each day as it comes."