After Olivia Munn was diagnosed with breast cancer in 2023, she urged her mom and sister to take a risk assessment test.

The 'Your Friends & Neighbors' star said she and her mom were there for each other for both of their double mastectomy surgeries: "There's something about watching a loved one go through it that is even more heartbreaking.

After sharing her breast cancer diagnosis in 2024, Olivia Munn shared that her mother Kim Munn went through her own battle with the disease.