Medical X-rays are to blame for many thousands of fatal cancers every year, according to the most comprehensive analysis to date. Medical experts stress that X-rays and CT scans can be very beneficial, but believe the new work shows that they should be used as sparingly as possible.
"They are of enormous benefit for such things as early cancer detection, but medical experts need to be aware of the quantifiable risks of X-rays." says Amy Berrington, of Oxford University, UK, and one of the research team. "If you need an X-ray for medical reasons then I should not worry about it."