http://www.newsweek.com/breast-cancer-screenings-low-risk-women-can-lead-more-harm-1011409

A harmless lump or bump could incorrectly come up as cancer during routine breast screenings. This means that some women undergo surgery, chemotherapy or radiation for cancer that was never there in the first place.

Now, a new study suggests that women who are at a lower risk of breast cancer might be better off not being screened for the disease.