 [ Symptoms ] i had a cat scan ct will radiation increase my cancer risk [ Disease ] normally radiations is not got for humans as they have many negative effects over the human body but if done unnecessarily and with no symptoms behind doing neccesary xray or ct scans is going to reveal something that if left undiagnosed could be more dangerous than increasing the risk of cancer so if you think your symptoms are not something to worry about do not expose yourself to radiations