Olivia Munn shares update on her breast cancer more than a year after diagnosis

Olivia Munn has opened up about her breast cancer 'timeline' after being diagnosed back in 2023.

The Attack of the Show! star revealed she'd been diagnosed with breast cancer in March this year, explaining she received the official diagnosis in April 2023.

In a post to her Instagram at the time, she recalled taking a genetic test with her sister in a bid to be 'more proactive' about her health.

The test checked them for '90 cancer genes including BRCA' and the pair both tested negative.

Munn also had a 'negative mammogram' the same winter, however, just 'two months later' she was diagnosed with breast cancer.

The actor admitted in the past 10 months she'd only seen people when she had the 'energy' and felt able to get out of the house, keeping her 'diagnosis and the worry and the recovery and the pain medicine and the paper gowns private' because she 'needed to catch [her] breath and get through some of the hardest parts before sharing'.

However, she's since taken to her social media once again to open up about her cancer journey over the past year and around five months, even sharing a detailed 'timeline' with followers.

Olivia Munn was diagnosed with breast cancer in April 2023 (Instagram/@oliviamunn)

In a post to her Instagram yesterday (September 5), Munn explained: "My breast cancer timeline. I’ve gotten a lot of questions about this and I’ve wanted to make this video for those asking for a while but I’ve been filming, finishing filming, running after a toddler and starting a new medication. Thank you for your patience and understanding.

"If you have any questions about my treatment or surgeries I’ve listed please put them in the comments."

The timeline begins in January 2022 when Munn underwent two mammograms and two ultrasounds which both came back clear.

The following January, a mammogram once again came back clear, the next month, she received a zero percent change of genetic cancer test reading and in March 2023, her Tyrer-Cuzick breast cancer assessment score came back as 37.3 percent.

In March to April 2023 she underwent an MRI, ultrasound and biopsies which revealed a bilateral breast cancer diagnosis which led to her undergoing a double mastectomy, nipple delay - to preserve the nipples - and lymph node dissection in May alongside egg retrieval in June.

Munn shared a 'timeline' of her journey with breast cancer (Instagram/@oliviamunn)

In September 2023, Munn had breast reconstruction surgery and began Lupron - hormone used to treat breast cancer in November, before undergoing a partial hysterectomy - surgery to remove part of the womb - and oophorectomy - surgery to remove part of all of the ovaries - in April and finally beginning Arimidex - hormonal therapy drug - last month.

Munn also thanked anyone who's messaged her, commented or stopped her in the street to show their support.

She resolved: "It means so much to me and it's been incredibly healing so thank you, thank you, thank you."

If you’ve been affected by any of these issues and want to speak to someone in confidence, contact the American Cancer Society on 1-800-227-2345 or via their live chat feature, available 24/7 every day of the year.