Probably some risk
The question is whether finding cancers earlier justifies the expense, inconvenience, the trouble and cost of false-positive readings, and perhaps increased cancer
There are some good reads bmj. 345:e5660, 2012 suggested for women with brca1/brca2 mutations early mammographs much increase total risk; health physics. 101(5):578-82, 2011 nov. Felt risk is minimal if started in older women.