Brett Mckay Dies at 26 After Battle with Testicular Cancer

Brett Mckay, a 26-year-old tradesman from New South Wales, Australia, passed away on January 27 after a year-long battle with testicular cancer. He was diagnosed in December 2024 while traveling in Banff, Canada, after experiencing severe back pain. Subsequent medical tests confirmed testicular cancer, with tumors having unfortunately spread to his kidney and liver.

Social Media Engagement

Upon returning home to Australia for treatment, Mckay leveraged social media, particularly Instagram, to keep friends and family updated on his health journey. His videos resonated widely, attracting a significant following of 50,000 and prompting an outpouring of support and outreach from viewers. His younger brother, Adam, shared that Mckay found significant purpose in openly sharing his story and striving to help others facing similar challenges.

Personal Life

During his chemotherapy treatments, Mckay met his girlfriend, Reana, through a dating app. His father, Michael, noted that Reana's presence brought immense support and comfort to his son throughout his arduous treatment. She remained by his side at the time of his passing.

Treatment and Decline

Initially, there was hope as Mckay's tumor count showed a promising decrease. However, the cancer aggressively progressed, with his tumor count alarmingly rising from seven to 75,000 within a matter of weeks. Doctors ultimately determined that no further treatment options were available. As his condition deteriorated, Mckay became too weak to fulfill several items on his bucket list, which had included planned podcast appearances and various physical activities.

Final Message and Legacy

Days before his death, Mckay posted a final video, expressing deep gratitude to his followers and acknowledging his limited time. Despite his declining health, he affirmed his intention to "not go down without a fight." He was laid to rest at a ceremony, with an online fundraiser having successfully contributed to the funeral costs.

Adam Mckay stated that his brother's legacy is his encouragement for men to discuss their physical and mental health.

Public Health Context

Vivienne Milch, medical director at Cancer Australia, highlighted that testicular cancer is the most common cancer affecting men under the age of 40, with the median age of diagnosis typically around 35. Research estimated 1,040 diagnoses in Australia in 2025 and nearly 40 deaths from the illness in the past year.

Professor Milch emphasized the importance of early intervention for successful treatment and encouraged men to be aware of their physical health and consult a GP if they notice new or persistent changes.

She also underscored the ongoing need for increased research into the rising rates of cancer among younger Australians.