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Rachel V Thomas

Olivia Munn Opens Up About Detecting No-Symptom Breast Cancer With Lifetime Risk Assessment Test

American actress Olivia Munn has opened up about her journey with deadly breast cancer, which came with no typical symptoms.

In her latest interview on CBS News Sunday Morning, the 45-year-old actress recalled being “faced with the possibility of death” in April 2023, when she was diagnosed with Stage 1 breast cancer.

Importantly, the actress had no symptoms, and even tests like a mammogram and ultrasound gave her a clean chit. 

"No symptoms. And I had a clear mammogram and a clear ultrasound," Olivia was quoted as saying.

However, the condition was detected after taking the Lifetime Risk Assessment test -- a free online Q&amp;A that gave her a high score estimating the risk of developing breast cancer in a lifetime. The test marked any score above 20 percent as a high risk. Munn's risk score was 37.3 percent.

The online test — Tyrer-Cuzick Risk Model — is publicly accessible and widely recommended by experts, and it calculates a woman’s five-year and lifetime risk of developing breast cancer using a combination of factors like age, family history, genetics, reproductive history, and more.

Post the assessment, she took "an MRI, which led to an ultrasound, which then led to a biopsy," she explained. 

The biopsy showed that she had what she described as "an aggressive, fast-moving cancer" in both of her breasts. 

Once she learned the diagnosis, she fought back with everything she had. She got a double mastectomy, an ovariectomy, and a partial hysterectomy. Now her risk score is zero.

Instead of recovering quietly, Olivia made it her mission to raise awareness about the condition — posting about her cancer on social media and telling the world about the risk assessment test. 

In the years since Munn started sharing her story, the number of women taking the test has increased by 4,000 percent, the report said.

"Knowing that it's really changed so many people's lives. It's been the most amazing thing. There's no way I could have ever predicted it," she said.

In 2025, Olivia’s mother, <a href="https://www.healthandme.com/health-wellness/olivia-munns-mom-diagnosed-with-breast-cancer-after-actor-urges-her-to-take-risk-test-what-should-you-do-if-it-runs-in-your-family-article-152258634" data-type="tilCustomLink">Kim, was also diagnosed with breast cancer</a> after taking the same risk assessment test.

In an Instagram post, Munn said her mother was diagnosed with Stage 1 HER2-positive breast cancer, a fast-growing but often treatable type of the disease. Her diagnosis came after Munn encouraged her mom and sister to take a free online breast cancer risk assessment.

Also read: <a href="https://www.healthandme.com/health-wellness/amanda-peet-opens-up-about-breast-cancer-battle-shares-toughest-moment-article-153941781" data-type="tilCustomLink">Amanda Peet Opens Up About Breast Cancer Battle, Shares Toughest Moment</a>

What Is A Lifetime Risk Assessment Test?

The MagView Tyrer-Cuzick Risk Assessment Calculator is an online tool that helps one calculate their lifetime risk of developing breast cancer. 

The tool urges people to reach out to their healthcare professional in case they have any questions about their risk of developing breast cancer and what the best options are for breast cancer screenings or genetic counseling they may have. 

Olivia stressed that any woman over 30 should take the test, and if their risk is above 20 percent, they should ask their doctor for a breast MRI.

Also read: <a href="https://www.healthandme.com/health-news/christy-carlson-romanos-cancer-test-result-shows-why-regular-screening-is-important-article-153645138" data-type="tilCustomLink">Christy Carlson Romano’s Cancer Test Result Shows Why Regular Screening Is Important</a>

Who Should Get Breast Cancer Screening Done? 

According to the American Cancer Society, you are considered to be at average risk if you do not have a personal history of breast cancer, a strong family history of it, or a known genetic mutation (like in the BRCA gene) that increases your risk.

This also applies if you have not had chest radiation before the age of 30. These are the breast cancer screening recommendations for women who are at average risk. 

Ages 40-44: You have the choice to start getting a mammogram every year.

Ages 45-54: You should get a mammogram every year.

Ages 55 and older: You can switch to getting a mammogram every other year, or you can choose to continue getting one every year.

You should continue to get screened as long as you are in good health and are expected to live at least 10 more years.

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American actress Olivia Munn has opened up about her journey with deadly breast cancer, which came with no typical symptoms. In her latest interview on CBS News Sunday Morning, the 45-year-old actress recalled being “faced with the possibility of death” in April 2023, when she was diagnosed with Stage 1 breast cancer. Importantly, the actress had no symptoms, and even tests like a mammogram and ultrasound gave her a clean chit. "No symptoms. And I had a clear mammogram and a clear ultrasound," Olivia was quoted as saying. However, the condition was detected after taking the Lifetime Risk Assessment test -- a free online Q&A that gave her a high score estimating the risk of developing breast cancer in a lifetime. The test marked any score above 20 percent as a high risk. Munn's risk score was 37.3 percent. The online test — Tyrer-Cuzick Risk Model — is publicly accessible and widely recommended by experts, and it calculates a woman’s five-year and lifetime risk of developing breast cancer using a combination of factors like age, family history, genetics, reproductive history, and more.  Post the assessment, she took "an MRI, which led to an ultrasound, which then led to a biopsy," she explained. The biopsy showed that she had what she described as "an aggressive, fast-moving cancer" in both of her breasts. Once she learned the diagnosis, she fought back with everything she had. She got a double mastectomy, an ovariectomy, and a partial hysterectomy. Now her risk score is zero. Instead of recovering quietly, Olivia made it her mission to raise awareness about the condition — posting about her cancer on social media and telling the world about the risk assessment test. In the years since Munn started sharing her story, the number of women taking the test has increased by 4,000 percent, the report said. "Knowing that it's really changed so many people's lives. It's been the most amazing thing. There's no way I could have ever predicted it," she said. In 2025, Olivia’s mother, Kim, was also diagnosed with breast cancer after taking the same risk assessment test. In an Instagram post, Munn said her mother was diagnosed with Stage 1 HER2-positive breast cancer, a fast-growing but often treatable type of the disease. Her diagnosis came after Munn encouraged her mom and sister to take a free online breast cancer risk assessment. Also read: Amanda Peet Opens Up About Breast Cancer Battle, Shares Toughest MomentWhat Is A Lifetime Risk Assessment Test?  The MagView Tyrer-Cuzick Risk Assessment Calculator is an online tool that helps one calculate their lifetime risk of developing breast cancer.  The tool urges people to reach out to their healthcare professional in case they have any questions about their risk of developing breast cancer and what the best options are for breast cancer screenings or genetic counseling they may have.  Olivia stressed that any woman over 30 should take the test, and if their risk is above 20 percent, they should ask their doctor for a breast MRI. Also read: Christy Carlson Romano’s Cancer Test Result Shows Why Regular Screening Is ImportantWho Should Get Breast Cancer Screening Done?  According to the American Cancer Society, you are considered to be at average risk if you do not have a personal history of breast cancer, a strong family history of it, or a known genetic mutation (like in the BRCA gene) that increases your risk. This also applies if you have not had chest radiation before the age of 30. These are the breast cancer screening recommendations for women who are at average risk.  Ages 40-44: You have the choice to start getting a mammogram every year.  Ages 45-54: You should get a mammogram every year.  Ages 55 and older: You can switch to getting a mammogram every other year, or you can choose to continue getting one every year.  You should continue to get screened as long as you are in good health and are expected to live at least 10 more years.

olivia munn opens up about detecting no-symptom breast cancer with lifetime risk assessment test

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