Are you considering having an x-ray or a CT scan done? Perhaps your doctor wants you to have numerous CT scans done in a short period of time. In fact, some people by the time they are thirty have had up to 20 CT scans.
This can exposure this patient to a lot of radiation and increase their risk of developing cancer.
I found a website from Idaho State University’s physics department which goes into some detail http://www.physics.isu.edu/radinf/risk.htm.
The site talks about risk and how it might affect you and your chance of getting cancer. You should not have any uncessary CT or x-ray scans done unless it really is medically necessary.