Michael Bolton reveals glioblastoma diagnosis: ‘You find out what you’re made of’

Michael Bolton is sharing new details about a somber health diagnosis he’s been navigating over the last year and a half.

Michael Bolton is sharing new details about a somber health diagnosis he’s been navigating over the last year and a half.

In a new interview with People, the singer revealed that he has glioblastoma, a form of brain cancer that the Cleveland Clinic defines as the “most common type of malignant (cancerous) brain tumor in adults.”

Bolton, 72, said he initially learned that he had glioblastoma in December 2023. The diagnosis came after the singer underwent emergency surgery where doctors removed a brain tumor.

One month later, Bolton underwent a second brain surgery in January 2024 following an infection. At the time, he took to Facebook to tell his fans he was taking a break from touring while he recovered from the surgery.

Per the Mayo Clinic, there is no cure for glioblastoma but treatments can “slow cancer growth and reduce symptoms.” The disease can occur at any age, but often manifests in older adults. The Cleveland Clinic notes that glioblastoma “can result in death in fewer than six months without treatment.”