Caitlin Leggett, a 24-year-old woman from Cardiff, Wales, has been remembered with love and sorrow after passing away following a battle with acute myeloid leukaemia, also known as AML. The aggressive blood cancer affects white blood cells and can progress quickly, often requiring intensive treatment. Caitlin’s story drew public attention after her family shared updates about her diagnosis, relapse, treatment efforts, and their attempt to raise funds for advanced medical care overseas.
Caitlin was first diagnosed with acute myeloid leukaemia in April 2025. After beginning chemotherapy, she initially entered remission, giving her family hope that the worst might be behind them. For a time, there was relief. Her loved ones believed treatment had worked and that Caitlin might have the chance to move forward with her life.
But that hope was later shattered when the cancer returned.
Following the relapse, doctors reportedly told Caitlin’s family that the treatment options available in the United Kingdom were unlikely to offer a cure at that stage. Faced with devastating news, her family began searching for other possibilities, including medical care abroad. They explored whether a stem cell transplant overseas could give Caitlin another chance.
To help cover the cost of treatment, Caitlin’s sister, Grace, launched a GoFundMe campaign. In the fundraising appeal, Grace described the urgency of Caitlin’s condition and the family’s determination to keep fighting for her. She also spoke about the deep bond she shared with her sister, explaining that they had recently celebrated their 24th birthday together.
The campaign quickly became more than a request for financial help. It became a public expression of love, fear, and hope from a family trying everything possible to save someone they cherished. Supporters responded with donations, messages, prayers, and words of encouragement as Caitlin’s story spread online and through media coverage.
During the search for treatment, Grace was tested as a possible stem cell donor. That process led to an unexpected discovery: Caitlin and Grace, long believed to be fraternal twins, were found to have identical genetic markers. Medical testing confirmed they were actually identical twins.
The discovery added another emotional layer to an already heartbreaking journey. For the sisters, it was a profound revelation about their connection. But medically, it also complicated the donor process. Because identical genetic profiles can affect stem cell transplant decisions, Grace was ultimately not used as Caitlin’s donor.
For the family, this was another painful setback during a period already filled with uncertainty. They had been hoping Grace might be able to help save her sister in the most direct way possible. Instead, they were forced to keep searching for other options while Caitlin’s health continued to decline.
Despite treatment efforts, Caitlin’s condition worsened after her relapse. According to updates shared by her family, she later suffered serious complications, including a sudden brain bleed and multiple strokes. These complications caused a rapid deterioration in her health shortly before her death.
Grace later announced Caitlin’s passing in a message shared on the family’s GoFundMe page on June 16, confirming that Caitlin had died the previous day. In the statement, the family thanked everyone who had supported them throughout the illness and asked for privacy as they grieved.
The family described Caitlin’s final moments as peaceful and said she was surrounded by loved ones. Their message reflected both the heartbreak of losing her and the gratitude they felt for the kindness shown by strangers, friends, and supporters during such a painful time.
Caitlin and Grace shared an especially close relationship. They had grown up together, celebrated milestones together, and remained deeply connected into adulthood. Throughout Caitlin’s illness, that bond became central to the family’s story. Grace’s devotion to her sister, her fundraising efforts, and the emotional discovery that they were identical twins touched many who followed their journey.
After news of Caitlin’s death was shared, messages of sympathy poured in across social media and fundraising pages. Supporters remembered her courage, her strength, and the love that surrounded her. Many also expressed admiration for Grace and the family, who fought to find treatment options even when the circumstances became increasingly difficult.
Donations raised through the campaign were used to support medical costs and related expenses during Caitlin’s treatment journey. The campaign also helped bring attention to the emotional and financial strain families can face when dealing with aggressive illnesses and limited treatment options.
Caitlin Leggett is remembered by her family and loved ones as a young woman who faced an incredibly difficult illness with bravery. Her story resonated with many people not only because of the seriousness of her diagnosis, but because of the love that surrounded her, especially the bond she shared with her sister.
Though her life ended far too soon, Caitlin’s story continues to live on through the memories of those who loved her, the support of those who followed her journey, and the lasting reminder of how deeply one life can touch many others.
