Reporter: Hers was the face of courage. Brooke burke-charvet dazzling the ballroom at the season finale of "dancing with the stars." But the brave smile masking her fear for her health. A whole lot of... See More
Reporter: Hers was the face of courage. Brooke burke-charvet dazzling the ballroom at the season finale of "dancing with the stars." But the brave smile masking her fear for her health. A whole lot of research and a whole lot of doctors' appointments for me. Reporter: She had a thyroidectomy, to remove a nodule on her thyroid. Tweeting this from the hospital, last looks at my neck. And now, brooke burke-charvet is opening up for the first time since her surgery. I'm resting, recovering. Surgery went well. Feels like I got hit by a car. A few days later, showing this photo of her neck, saying, healing. Her wound will continue to look better and better. And most likely, it will be inperceptible a year from now. Reporter: The mother of four is going to bed at the same time as her kids. Just put my babies to bed. And I'm right behind them. She only revealed her diagnosis, six weeks ago. I went for a regular physical. And that's how I discovered this. Reporter: And even documented her fears about sharing the news with her children. Writing about her 4-year-old son's reaction. Saying, he laid in bed and said, I don't want mommy to die. That's the stuff that breaks my heart. Also confiding, I'm not afraid anymore. I'm ready to put this behind me. Less than a week after her surgery, burke-charvet appears to be in good spirits. Thanking her twitter followers online, for all of their support. Including members of her "dancing with the stars" family, like cheryl burke. For "good morning america," paula faris, abc news, new york. All our best for brooke. So glad to know she is going to be okay.
This transcript has been automatically generated and may not be 100% accurate.