Brad Arnold, the lead singer of 3 Doors Down, has publicly shared that he has stage 4 clear cell renal cell carcinoma , which is a type of kidney cancer that has spread to his lung.

Quick Scoop on the Diagnosis

  • The type of cancer is clear cell renal cell carcinoma (often shortened to ccRCC), the most common form of kidney cancer in adults.
  • His diagnosis is stage 4 , meaning the cancer has metastasized (in his case, to at least one lung).
  • He announced this in a video message to fans in May 2025, explaining that he was feeling unwell, went to the hospital, and tests revealed the cancer.
  • Because of the diagnosis and treatment needs, 3 Doors Down canceled their planned tour.

What “Clear Cell Renal Cell Carcinoma” Means

  • It is a kidney cancer that starts in the cells lining the tiny tubes that filter waste from the blood.
  • Under the microscope, the cancer cells look “clear,” which is where the name comes from.
  • It accounts for around 70–80% of kidney cancer cases, making it the most frequently seen subtype.
  • Doctors describe it as one of the more aggressive kidney cancers, but also one where newer treatments (especially immunotherapy and targeted therapies) have significantly improved outcomes for many patients.

Current Context and Reactions

  • News of his diagnosis has been widely covered by major outlets like CNN, USA Today, and Today.com, emphasizing both the seriousness of stage 4 disease and his calm, fearless attitude in speaking to fans.
  • Fan communities and forums are discussing his situation with a mix of shock, support, and hopeful stories from people living with similar kidney cancers, including stage 4 renal cell carcinoma managed as a long-term condition thanks to modern treatments.

TL;DR: Brad Arnold has stage 4 clear cell renal cell carcinoma, a form of kidney cancer that has spread to his lung, and he’s facing it publicly with a very composed, fearless outlook.

Information gathered from public forums or data available on the internet and portrayed here.