The 44-year-old royal was diagnosed with cancer in early 2024, and after overcoming her health scare, the princess posted a message of support to other people going through similar struggles.
"On World Cancer Day, my thoughts are with everyone who is facing a cancer diagnosis, undergoing treatment or finding their way through recovery," she says in the video, posted to Instagram.
"Cancer touches so many lives - not only patients, but the families and friends and caregivers who walk beside them.
"As anyone who has experienced this journey will know, it's not linear. There are moments of fear and exhaustion. But also moments of strength, kindness, and profound connection.
"Today is a reminder of the importance of care, understanding and hope. Please know you are not alone."
Kate announced in early 2025 she was in remission from cancer. The princess's video included footage of her visit in January 2025 to the Royal Marsden Hospital in London, on the day she confirmed she was in remission.
"I wanted to take the opportunity to say thank you to The Royal Marsden for looking after me so well during the past year," Kate wrote on social media platform X at the time.
"My heartfelt thanks goes to all those who have quietly walked alongside William and me as we have navigated everything.
"We couldn't have asked for more. The care and advice we have received throughout my time as a patient has been exceptional."
With PA