@2024tymloshelp I’m another in the petite category, low BMI, due to weight loss during cancer…it is possible that some treatments can lower bone density—but I wonder if that can reverse….i think it matters how active you are, if you are/are not frail, and if you have lost height, diet, etc…. the standard measures probably don’t correlate many individual factors… but, that said, we need to pay serious attention and do whatever is right for us to take great care of our own bones—it does take work, no question.