Singer Michael Bolton is battling brain cancer, according to a major update from his family.

While the surgery itself was successful in removing the tumor tissue, glioblastoma is known for its ability to infiltrate surrounding brain cells — which is why additional treatments are always necessary.

In January 2024, Bolton underwent a second surgery after developing an infection related to the initial procedure.

In the months that followed, he completed a full course of radiation therapy and chemotherapy, a standard and aggressive treatment plan for glioblastoma patients in his age group.

He finished these treatments in October of 2024, but the fight — and the vigilance — did not end there.

Ongoing Treatment and Monitoring: The Work Continues

Because glioblastoma has a high recurrence rate — scientists estimate around 90% of cases will see tumor return over time — Bolton now undergoes MRI scans every two months to monitor for any signs the cancer has come back.

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