Hi @kaa1 the bmd decrease in forearm after therapy were well documented in clinical studies of tymlos as well as forteo. The explanation was that both meds could increase cortical porosity and bone in the forearm (distal 1/3 radius, the common site of DXA measurement) mostly consists of cortical bone. However, this phenomenon didnt appear to correlate an increased rate of spontaneous fractures in forearm during those studies period or post-study monitoring period. Most forearm fractures in elderly are due to blunt trauma (could be low trauma) or from breaking a fall.

I’ve never had my forearm bmd measured however won’t be surprised to see a very low T score at 1/3 distal radius, as studies generally show lower T scores at this site when compared with that of spine or hip. Hope a consultation with your doctor or maybe an X-ray will quickly ease your concern.