Olivia Munn is letting us in on her private battle with breast cancer.

The actor, 43, revealed on Instagram today that she was diagnosed with the condition last year and underwent a double mastectomy.

“I was diagnosed with breast cancer,” she wrote in an Instagram post that included photos of Munn at the hospital and during her recovery period. “I hope by sharing this it will help others find comfort, inspiration, and support on their own journey.”