Overview
- Munn published the first episode of a new Instagram series on Thursday, Aug. 13, 2026, saying she will use it to answer questions and share ongoing updates about her recovery.
- She was diagnosed with aggressive Luminal B breast cancer in 2023 and publicly disclosed the diagnosis in March 2024 after further imaging and biopsy confirmed tumors in both breasts.
- Thirty days after detection she underwent a double mastectomy and multiple follow-up operations, and she later chose a full hysterectomy as part of managing a hormone-driven cancer.
- Munn says she went into surgical menopause and is taking an aromatase inhibitor to suppress estrogen, and she warned those medications can cause difficult side effects for patients.
- She credited the online ‘sisterhood’ of other patients with giving her hope and urged people to ask doctors about a personalized breast cancer risk assessment, a step she says led to the scans that found her cancer.