My daughter had a fibrous cyst removed from her breast, when she was only 17! We don't have a history of breast cancer on either side of the family, so it came as a surprise to us that our daughter had such a health issue. However, we do have a history of lymphoma on both sides, and my daughter's oncologist checks up on her every year.
How she found the lump was by self-examination, and I'm so grateful that she had learned this in her health science class in school, as well as from her Gynecologist. Had she not detected it, who knows what would have happened to our beautiful girl!