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A 17-year-old female asked:

When i was a child i had many dentist x-rays and at 16 i had two or three head cat scans within a month of each other i'm i goin too get brain cancer?

1 doctor answer1 doctor weighed in
Dr. Ed Friedlander
Pathology 45 years experience
Little risk: Especially in the last 20 years, dental x-rays have used infinitesimal amounts of radiation. The exposure from CT scans is greater but it's still too low to measure in any population-based study. What you've read is based on data from atom-bomb survivors extrapolated on the assumption of a linear relationship, which makes no sense biologically. Stop worrying about this stuff.
Last updated Mar 24, 2015

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