Do ct scans cause cancer?
My doctor wants me to get a CT scan for a chronic issue. I've been hearing a lot of scary things about radiation exposure and cancer risks with these scans. Do CT scans actually cause cancer, or is the risk very low?
5 answers
5 months ago
Most liked
While CT scans do use ionizing radiation, the risk of developing cancer from a single scan is extremely low—about 1 in 2000. My doctor explained that the diagnostic benefit of finding a hidden internal issue far outweighs this minor, theoretical risk. Just make sure the scan is actually necessary.
6 months ago
The radiation from one CT scan is roughly equivalent to what you naturally absorb from the environment over a few years. I track my medical history digitally, and modern CT machines are highly optimized to use the lowest possible dose. Unless you are getting them done repeatedly, the risk is negligible.
6 months ago
I had a massive panic attack when my doctor ordered a chest CT scan, and I spent hours crying thinking it would cause cancer. But after speaking to the radiologist, I realized the technology is very safe now. It's been two years and I am perfectly fine, so please don't stress!
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Consult a radiation oncologist
yrs exp
5 months ago
It is true there is a very small amount of radiation, so you should only get a CT scan when a qualified doctor advises it. Never self-prescribe or go to private labs without a prescription. Your doctor will weigh the safety and suggest it only if absolutely required.
4 months ago
Bro, don't worry too much about this. I had to get a CT scan done after a bike fall last year and got super scared looking at Google. My doc laughed and said a single scan is totally fine and won't give you cancer.