St. Petersburg, Florida -- Women who have the breast cancer gene are 50 to 80 percent more likely to develop the disease.
There's also a good chance they could pass the gene onto their children. Would you tell your child you were a carrier?
Laura McSpirit-Grier has the BRCA gene which puts her at very high risk for breast cancer. After her twin sister, aunt and cousin developed breast cancer, Laura chose to have her breasts and ovaries removed. She says she never questioned letting her 14-year-old daughter Summer know about her genetics.
"It might worry me if I know that I have it -- but I would rather have the knowledge that i can help save myself," daughter Summer Flanagan said.
A new study finds Laura did what most parents do. Researchers in Philadelphia looked at more than 253 parents who had genetic breast cancer testing and found that 66% shared their results with their kids.
There's a 50- 50 chance women with the BRCA gene mutation will pass it onto their children. Most doctors don't want to test those children until they're in their twenties .
You can tell us what you would do by joining the conversation on our 10 News Buddy Check 10 page.