Cassandra Thorburn’s Health Update and Cancer Journey
Cassandra Thorburn, the ex-wife of Karl Stefanovic, has shared a detailed update on her health as she continues to battle a rare form of cancer. The 55-year-old mother of three recently revealed that she was hospitalized after receiving her first dose of a chemotherapy treatment often referred to as “red devil chemotherapy.” This treatment is known for its intense side effects, and Cassandra described the physical toll it has taken on her.
In a recent Instagram post, Cassandra opened up about the challenges of her treatment, sharing a glimpse into her daily life. She mentioned that she spent five days in the hospital following her initial dose. Despite the grueling experience, she admitted to struggling with what she calls “lead legs”—a term she uses to describe the heavy, sluggish feeling in her lower body that makes even simple activities like walking difficult.
Despite these challenges, Cassandra remains remarkably resilient. She continues to work full-time from home, though she acknowledges that some days are harder than others. Her determination highlights her strength and commitment to maintaining a sense of normalcy during this difficult time.
A Powerful Message for Friends and Family
Cassandra also shared a heartfelt message for friends and loved ones who are supporting someone undergoing cancer treatment. She emphasized the importance of walking during chemotherapy, noting that oncologists often encourage this activity due to its positive impact on outcomes.
“I’m out walking this morning and hoping you will share your stories about how you kept yourself walking during chemo treatment,” she wrote. “Lead legs is what I call it, but it’s the weight in the bottom part of the legs that makes it really hard to go for a walk. I find it after the first 10 minutes I can keep going, it’s the first 10 minutes that are hard for me.”
Her message serves as both a personal reflection and a reminder of the support that can make a difference in someone’s journey through cancer.
Support from Family
Cassandra, who shares three children with Karl Stefanovic—Jackson, Willow, and River—has received strong support from her family throughout her treatment. She recently shared that she has completed her second dose of chemotherapy.
“I’ve had dose two now of my red devil friend,” she said. “I didn’t enjoy staying in hospital, I’d much prefer to be at home with mum and River.”
Her 21-year-old daughter, Willow, recently returned from the UK to Australia to be by her mother’s side following her diagnosis. According to a source, Willow arrived just in time to celebrate her 21st birthday with the family.
“Cass and Willow were actually planning a driving holiday around the UK when Cass learned of her cancer diagnosis,” the insider explained. “With the help of both Karl and Cass, Willow made the decision that instead she would fly home and spend quality time with her mum.”
The insider also noted that all three of the Stefanovic children are “rallying around their mum” as she continues her cancer journey.
Understanding Cassandra’s Diagnosis
Cassandra was diagnosed with triple-negative occult breast cancer, a rare and aggressive form of the disease. Occult means hidden, which indicates that the cancer had spread to the lymph nodes but was not detected in the breast through imaging or clinical exams. She publicly shared her diagnosis in February 2026.
Throughout her journey, Cassandra has been open about her experiences, often posting on Instagram about the challenges she faces. She has spoken about everything from sourcing the right information to dealing with “cancer ghosting”—a term used to describe the lack of support from friends and loved ones during a cancer diagnosis.
In March, Cassandra shared a video expressing gratitude for the positive feedback she has received from others.
“I have had a lot of feedback that sharing my diagnosis and being open to talking about this journey is not just leading to women going for that test they have put off, it is also helping those going through chemotherapy themselves by making them feel less alone on their journey,” she said.
