yep, unfortunately it does. I had chemo and radiation. I had a lot of radiation as the cancer spread to one node during treatment. Luckily I was early stage, but still damage was done. How is your cousin now? Does she do any treatments? Thank you for your response..

@diannestanley I also had those cancer treatments (aromatase inhibitors) and the do cause decreased bone density but I would not say they destroyed my bones.

If you ever want to do Tymlos, they have a patient assistance program. I get mine for free.