Olivia Munn has for more than a year been speaking out about the importance of a breast cancer risk assessment test that helped lead to her diagnosis in 2023, and she has now shared that that very same test also led to her mother’s breast cancer diagnosis.

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

Olivia’s mom is Kimberly “Kim” Munn (née Schmid). As the Newsroom alum pointed out in a July 2025 Instagram post, Kim is married to her husband, Sam. Previously, Kim was married to Olivia’s father, Winston, until their divorce when Olivia was 2 years old. Kim remarried a member of the U.S. Air Force, and they divorced when Olivia was 16.