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In March 2024, Kate Middleton announced her cancer diagnosis. It came after months of speculations following Kate undergoing a planned abdominal surgery. It wasn’t the first time the Princess of Wales required major surgery; she once had a procedure for a mass on her head.

Kate Middleton’s health history

Kate Middleton’s cancer news is by far the most serious health condition she has disclosed to the public. A March 2024 Instagram video from the princess revealed the diagnosis, stopping short of revealing the exact cancer type. Prior to the cancer diagnosis, part of Kate Middleton’s health history has been public knowledge.

Kate had to navigate a pregnancy health issue during her early years as a royal. The Princess of Wales experienced Hyperemesis Gravidarum during all three of her pregnancies. This is a condition that can result in severe nausea, vomiting, dehydration, and weight loss.

During the Happy Mum, Happy Baby podcast, Kate revealed her pregnancies were challenging because of the health condition. “I got very bad morning sickness, so I’m not the happiest of pregnant people,” she told host Giovanna Fletcher.

Kate went on to say it’s difficult when your loved ones can’t do much to help. She says Prince William didn’t feel like he could do much to assist her.

“Lots of people have it far, far worse, but it was definitely a challenge,” Kate continues. “Not just for me but also for your loved ones around you – and I think that’s the thing – being pregnant and having a newborn baby and things like that, impacts everybody in the family. William didn’t feel he could do much to help and it’s hard for everyone to see you suffering without actually being able to do anything about it.”

Kate Middleton had emergency surgery for a mass on her head

Kate Middleton visits a school in Pakistan in 2019.
Kate Middleton | Ian Vogler – Pool/Getty Images

Kate had emergency surgery on her head when she was in high school. According to royal biographer Katie Nicholl in the book Kate: The Future Queen, Kate noticed a lump on the left side of her head. After alerting her doctor, it was determined she needed surgery right away. Kate returned to school shortly after the operation so she could continue her studies at Marlborough College.

“I can remember the incident and her having an operation,” Ann Patching, an employee at Marlborough, told Nicholl (via Marie Claire). “I don’t recall anything happening on the hockey pitch [field] that had anything to do with the lump. Catherine had the operation during her term time. She was back at school very soon afterwards. As usual, nothing was too much of a big deal for her. You could never accuse Catherine of being a drama queen, but Carole was very worried, as any mother would be.”