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Seed Therapy for Prostate Cancer May Zap Fertility
Radioactive "seeds" that are sometimes used to treat early prostate cancer may do widespread damage to the DNA in a man's sperm, a small study finds. Known as brachytherapy, the treatment involves implanting radiation-emitting pellets into the prostate gland to kill off cancer cells. The damage, researchers say, would seem to be enough to make a man infertile. And they should be aware of that going into treatment.