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John Mellencamp Says Daughter Teddi Is ‘Really Sick,’ Reveals Brain Lesions and Ongoing Treatment

He detailed roughly 10 brain lesions, continuing radiation and immunotherapy, and his push for her to relocate to Indiana as the family navigates care after scans last fall showed no detectable cancer.

Overview

  • Teddi Mellencamp’s father said on the Joe Rogan podcast and on TODAY that she is suffering and that he speaks with her daily while urging her to move from Los Angeles to Indiana for support.
  • He told People there are about 10 lesions in her brain, some removed and the rest treated with radiation, noting the lesions are not cancerous currently but are affecting her thinking.
  • John Mellencamp said she has good days but feels unwell for several days after each immunotherapy cycle, and that she cannot be considered cancer‑free for three years with her diagnosis.
  • Teddi previously reported in October 2025 that scans showed no detectable cancer after immunotherapy, stressing she was not in remission and would continue treatment.
  • Her melanoma was first diagnosed in 2022 and progressed to stage 4 in 2025 with spread to her brain and lungs, leading to emergency brain surgery and ongoing care, and she recently shared she is addressing PTSD through therapy and rest.