ELi5: What does medical radiation do to the body?

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I have breast cancer and I’m starting radiation tomorrow. I understand that it’s supposed to reduce the risk of reoccurrence and that it is destroying cells. But how? Which cells are affected? Why will it make me tired?

In: Biology

18 Answers

Anonymous 0 Comments

As a radiotherapist of 15 years you’ll be fine. The long and short of it as has been said is the beam will damage the whole breast but the cancer cells won’t recover but your healthy tissue will. You may feel tired as the healthy tissue recovers and the mental load of going through cancer treatment can take it out of you, but with modern treatments it’s not that likely to cause issues. In all likelihood the radiographers will go over everything before you have any treatment, we’re used to any and all questions you might have and don’t feel like anything is a dumb question we’d feel much worse if you didn’t ask.

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