We all remember "Dancing with the stars" co-host Samantha Harris revealing she has breast cancer. She's just 40 years old. She was diagnosed after taking matters into her own hands. Take a look at her... See More
We all remember "Dancing with the stars" co-host Samantha Harris revealing she has breast cancer. She's just 40 years old. She was diagnosed after taking matters into her own hands. Take a look at her story. It's Samantha. Reporter: She hosted "Dancing with the stars" for eight seasons. Thank you, Tom. Reporter: Even appearing as a special correspondent on "Gma." We're joined by special correspondent, Samantha Harris, in Los Angeles. Reporter: This morning, the TV star is revealing, at just 40 years old, she has been diagnosed with breast cancer. I think the why me wasn't so much why me? But why my girls? You know? Reporter: Telling "Entertainment tonight," it was a diagnosis she had to fight for. After several doctors informed her that the lump they found in her breast was benign. Someone who gets a diagnosis with anything that is going to change the life that you lead right now, it's scary. Reporter: But Harris pushed past the fear of the unknown because she just didn't feel like herself. She decided to take matters into her own hands. Opting to see a specialist who found the lump was actually cancerous. And having lost my dad when he was just 50, I was lucky because I was 22. And I had had him throughout hi whole adolescence. I'm 40. I'm closer to his age at death than he was when he had me. And so, those are the thoughts. It's so important that you listen to your body. If something doesn't feel right, you get a check. And if you still have concerns, you get a second opinion. Reporter: Harris' immediate concern, her two daughters. My daughters are 3 and 6. All they're concerned about is to have mommy active, being able to hold them, hug them, kiss them. Be there, be present for everything. I will be here to plan my daughter's weddings. And they better like the dress I picked. She has that fighting spirit. It's about early detection and being vigilant. When you know something's wrong, you speak up. You get that second opinion. She had to be fierce about it. Yeah. And good for her. We wish her the very best. We sure do. Want to switch gears now and
This transcript has been automatically generated and may not be 100% accurate.