Caitlin Leggett, a 24-year-old woman from Cardiff, Wales, has been remembered following her battle with acute myeloid leukaemia (AML), an aggressive form of blood cancer that affects the white blood cells. Her story gained public attention after her family shared updates about her diagnosis, treatment journey, and efforts to seek additional medical care abroad through public fundraising. According to reports shared by her family and covered in UK media, Caitlin was diagnosed with AML in April 2025.
She began intensive chemotherapy treatment and initially responded positively, entering remission for a period of time. This brought hope to her family and medical team, as remission is often an important milestone in cancer treatment outcomes. However, the illness later returned, and doctors informed the family that treatment options available within the United Kingdom were unlikely to provide a long-term cure. As a result, the family began exploring alternative treatment possibilities overseas, hoping to find advanced care options that might improve her condition or extend her life.
A fundraising campaign was created on GoFundMe by her sister, Grace, to help support the costs of international treatment. In the campaign description, Grace expressed the emotional difficulty of the situation and emphasized the urgency of finding further medical support. She noted that the family had recently celebrated Caitlin’s 24th birthday and that time was becoming critical for treatment decisions.
During medical assessments, Grace was evaluated as a potential stem cell donor for her sister. It was during this process that doctors discovered the twins shared identical genetic markers, confirming that they were identical twins. This finding was unexpected for the family, who had previously believed they were fraternal twins due to how their pregnancy had developed.
Medical specialists explained that in stem cell transplantation procedures, genetic compatibility plays a crucial role in determining donor suitability. In this case, the identical genetic match between the sisters made the situation more complex in terms of treatment planning. This discovery added both medical and emotional challenges for the family during an already difficult time.
Despite ongoing treatment efforts, Caitlin’s condition worsened after the relapse. According to updates shared by her family, she later suffered severe medical complications, including a sudden brain bleed followed by multiple strokes. These complications led to a rapid decline in her health in the days before her passing.
Her sister Grace later confirmed Caitlin’s death through a public message shared on the family’s fundraising page. The announcement stated that Caitlin had passed away peacefully, surrounded by her loved ones. The family expressed gratitude for the support, kindness, and donations they received throughout her illness and treatment journey.
The statement also reflected the emotional weight of the loss and the close bond between the sisters. Caitlin and Grace were described as very close throughout their lives, sharing both their upbringing and adulthood together. Their relationship played a central role in how they faced Caitlin’s diagnosis and treatment process.
Following the news, many supporters and members of the public shared messages of sympathy and condolences online. Tributes highlighted Caitlin’s strength, resilience, and the emotional impact her story had on those who followed her journey. Her experience resonated widely with people who had faced or supported loved ones through serious illness.
Donations made through the fundraising campaign continued to support medical-related costs and family needs during the treatment period. The family also used the platform to update supporters and express appreciation for the global response to Caitlin’s situation.
Caitlin Leggett is remembered by her loved ones as a young woman who faced a very difficult illness with courage and determination. Her story has been widely shared as an example of both the challenges of aggressive cancer and the emotional strength shown by families during serious medical struggles.
