I think it is smart to talk to doctors and to consider skipping radiation if all margins were good and your cancer type is good and to consider family history of breast cancer. I got lymphedema in right arm and it is swollen, I also got a second DCIS from radiation and I have heart and lung damage. I know a woman who refused radiation and I did not argue with her. Talk with your doctor and other people, and do research yourself if you are able. Does the benefits outweigh the risk is the question to consider with any medical treatment? I got an ulcer from Ibuprophen for arthritis symptom, so I had to stop taking them, so I don't consider any treatment not to have risks.